Mt. Tamalpais

Total Page:16

File Type:pdf, Size:1020Kb

Mt. Tamalpais Marin Conservation League Walk Into (Conservation) History #12 Saturday, September 22, 2012 Mt. Tamalpais Marin Conservation League 1623–A Fifth Avenue, San Rafael, CA 94901 415.485.6257 marinconservationleague.org Marin Conservation League was founded in 1934 to preserve, protect and enhance the natural assets of Marin County. Marin Conservation League Walk Into (Conservation) History # 12 MT. TAMALPAIS—STATE PARK AND MMWD WATERSHED SEPTEMBER 22, 2012 – 9:30 a.m. to 1:30 p.m. Introduction to In 2009, MCL initiated a series Walk Leaders: of Walks into lands in Marin that Nancy Skinner, Mt. Tam Interpretive Association Today’s Walk people with vision recognized Jack Gibson, Director, Marin Municipal Water District This year marks the Centennial would not survive for future Anniversaries of both Marin generations unless they were Arlin Weinberger, Mt. Tam Interpretive Association Municipal Water District (MMWD) permanently protected. Every acre Nona Dennis, Marin Conservation League and Tamalpais Conservation Club of public open space that we now Larry Minikes, Tamalpais Conservation Club (TCC). To help commemorate these enjoy is a testament to human effort events, Marin Conservation League and generous funding from many David Schnapf, Marin Conservation League (MCL) is pleased to conduct its 12th sources, but mainly to persistence. Karl Baeck, Mt. Tam Interpretive Association Walk into (Conservation) History Since its founding in 1934, MCL on Mount Tamalpais, affectionately has played a significant role in known as “Mt. Tam,” where the many of these stories, as either conservation efforts of thousands leader or partner. During the have converged to protect this decades in which Mt. Tamalpais remarkable natural eminence for was transformed gradually from the enjoyment of millions who visit private into public land, leaders the Mountain. like William Kent, TCC and MMWD The conservation history of Mt. Tam charted the course for saving Mt. is about some of the most beloved Tam and accomplished the first lands in Marin: Muir Woods, Marin major land acquisitions. MCL was Municipal Water District, Mt. Tam a partner in later campaigns to State Park, the Golden Gate complete Mt. Tamalpais State Park National Recreation Area and the and led the campaign to establish Marin Open Space District. While Marin County Open Space District, innumerable people were involved which began with the mountain’s in these efforts, one person, Northridge area. MCL also wrote a William Kent, stands above all set of criteria in 1966 that guided others in preserving the Mountain appropriate use of Mt. Tam for for future generations. many years. Route of today’s Walk shown in orange. 2 Today’s Route mountain’s history, emphasizing At an elevation of about 2,600 Mt. Tam is a prime example of the those events and actions that feet, Mt. Tam is the quintessential Franciscan Formation, described Experiencing Mt. Tam’s history marked its conservation as public landmark of the inner Bay Area! by one geologist as a “complex, actually begins with the drive up land. The mountain consists of a primary disrupted assemblage – in other to the Rock Spring parking area three-mile-long ridge with three words, a heap of rubble . the at the junction of Pantoll Road and Views of Mt. Tam distinct peaks, of which the West upthrust from the grinding together Ridgecrest Boulevard. (See the list was tallest at 2,604 feet (before of tectonic plates.” Salem Rice, It is impossible to miss Mt. Tam of “noteworthy Mt. Tam spots to be 30 feet were shaved off for a eminent Marin geologist and from most vantage points in the seen on the drive and the walk.”) military base) and the East peak is former board member of TCC, Bay Area. To the Coast Miwok 2,571 feet. Several ridges descend once said of the mountain that “Any The walk route is from Rock who inhabited Southern Marin from the main ridge, among them two pebbles you pick up may have Spring to the Mt. Theater, then to for at least 8,000 years, it was Bolinas Ridge, Throckmorton Ridge, started a thousand miles apart.” Bootjack Camp by way of Easy inhabited by evil spirits. Mountains and Blithedale Ridge (Northridge). Grade Trail, on to West Point Inn were places of power inhabited Mt. Tam also plays a significant role The exact boundaries are hard by way of Old Stage Road, and by the supernatural and they were in controlling area precipitation. to define, but the mountain is returning on the Rock Spring Trail. to be avoided, although the lower The highest annual rainfall is on estimated to encompass anywhere slopes yielded acorns and other the north side – about 53 inches At several points along the way from 25,000 to 60,000 acres, vital plant food. Many years later, average annual rainfall at Lake we will share various pieces of the depending on one’s geography. Harold Gilliam, San Francisco Lagunitas, dropping to 30 to 40 Chronicle science writer for 50 inches on the south and west- View of Bon Tempe Lake and Lake years, described seeing Mt. Tam facing exposures. Compare this to Lagunitas from East Peak from the East Bay as “Vesuvius” average rainfall of 22 inches in rising above the Bay of Naples. For San Francisco. Several permanent Mill Valley, it stands as a kind of and seasonal creeks descend the sentinel, dominating almost every slopes, in particular the extensive view. Flora of Mt. Tam—(L—R): Manza- nita (Arctostaphylos manzanita ), Chamise (Adenostoma fascicula- tum), Madrone (Arbutus menziesii) Photo credits: Dru Parker, Dennis Marelli / Calflora, Beatrice F. Howitt © California Academy of Sciences Dru Parker 3 Lagunitas Creek watershed on the have been spotted on the mountain. north. Springs and creeks provided Sir Francis Drake was the first to water supply long before the first report on plants in Marin. Later of four dams was installed on a explorer-naturalists Douglas, branch of Lagunitas Creek in 1873. Menzies, Eschscholtz, Hartweg, and The variety of plant and animal life others are remembered for the on Mt. Tamalpais is extraordinary species named after them. and reflects its many microclimates For Alice Eastwood, Curator of and soils. Shrubby chaparral Botany at the California Academy species such as chamise and of Sciences from 1892 until 1949, manzanita predominate on the when she resigned at age 90, rocky south and east-facing slopes, Tamalpais was a favorite haunt. with oak, bay and madrone in She was known to trudge thirty ravines; redwood and fir are miles a day carrying heavy plant common on the north side and on presses on her back. John Thomas slopes that face the Pacific Ocean. Public Library Valley Room, Mill Little History of the Lucretia Courtesy Howell followed in her footsteps Broad exposures of serpentine and wrote the first comprehensive have created their own unique flora (Marin Flora, 1970, revised the old-growth redwoods in Muir flora. Mt. Tamalpais Interpretive in 2007). Vegetation has gone Woods, no original timber still Association (MTIA) estimates through notable shifts, however, as stands on Mt. Tam. that over 750 species of plants fire has been largely suppressed, grow there. Bobcats, foxes, deer, and invasive species like broom Pieces of History: raccoons, the occasional mountain have moved into disturbed lands, Conserving Mt. Tam lion and over 150 bird species especially those cleared for fuel breaks. With the exception of Tamalpais has been visited and used by explorers, loggers, hunters, dairy ranchers, hikers, artists, botanists, and tourists since the 19th century, and more recently runners and mountain bikers. In the 19th century it was exploited by hunters, Native fauna of Mt. Tam (L—R): who shot hundreds of deer for American badger(Taxidea taxus), commercial purposes, and loggers, Red-tailed hawk (Buteo jamaicensis), who cut timber for construction and Bobcat (Lynx rufus) for firewood, primarily from the lower slopes and gulches. Photo credits (all from flickr.com): Yathin, Danny Perez, Len Blumin Until the 1830s and ‘40s, Mt. 4 Tamalpais was split among four climb a few steps for refreshments holdings. In 1903 he called a (five according to some sources) at Tamalpais Tavern. 1902 saw meeting at Ross’ Lagunitas Club huge privately owned Mexican the advent of “gravity cars” which with the intention of promoting land grants. As pieces of the grants coasted down the mountain in 21 Mt. Tam as a national park. Kent’s were sold off, private ownership minutes. The growing use of the vision to establish a national park continued to prevail until the early Mountain by the public played a based on the Yellowstone model 20th century. considerable role in pushing the was prompted by his fear of what By the turn of the century, the transition of private to public land. might become of the mountain if it remained in private hands. As he mountain attracted more than William Kent hunters, loggers and dairymen. No one played a bigger role in stated in his speech at that meeting: Mill Valley had become a primary that transition than William Kent, “Never was such a spot for the destination for hikers from all over who came to Marin with his parents enjoyment of man. Never a spot the bay area who came to hike on in 1871. Lands donated or sold at where heedless exploitation (would) Mt. Tam. The opening of the Mill highly discounted prices by Kent work more loss. .Subdivision, Valley & Tamalpais Scenic Railway were critical to the establishment building of houses, and ordinary William Kent in 1896 changed the history of of Muir Woods, MMWD, Mt. Tam so-called suburban improvements on the mountain almost overnight. State Park, and the Mountain Mt. Tamalpais will do more to ruin acres to today’s 559 acres.
Recommended publications
  • Lagunitas Creek Floodplain and Riparian Enhancement Design
    COASTAL CONSERVANCY Staff Recommendation May 26, 2016 LAGUNITAS CREEK FLOODPLAIN AND RIPARIAN ENHANCEMENT DESIGN Project No. 16-020-01. Project Manager: Joel Gerwein RECOMMENDED ACTION: Authorization to disburse up to $490,578 to Turtle Island Restoration Network to produce design plans, prepare permit applications and provide environmental compliance for restoration of floodplain coho salmon rearing habitat on a one mile reach of Lagunitas Creek, Olema, Marin County. LOCATION: Olema, Marin County PROGRAM CATEGORY: Integrated Coastal and Marine Resources Protection EXHIBITS Exhibit 1: Project Location Maps Exhibit 2: Site Photographs Exhibit 3: Project Letters RESOLUTION AND FINDINGS: Staff recommends that the State Coastal Conservancy adopt the following resolution pursuant to Section 31220 of the Public Resources Code: “The State Coastal Conservancy hereby authorizes the disbursement of an amount not to exceed $490,578 (four hundred ninety thousand five hundred and seventy-eight dollars) to Turtle Island Restoration Network (TIRN) to produce design plans, prepare permit applications and provide environmental compliance for a floodplain restoration project to improve coho salmon rearing habitat along a one mile reach of Lagunitas Creek floodplain near the community of Olema, Marin County, subject to the condition that prior to the disbursement of any funds for the project, TIRN shall submit for the review and approval of the Conservancy’s Executive Officer a workplan, schedule and budget, and the names and qualifications of any contractors for the project.” Staff further recommends that the Conservancy adopt the following findings: “Based on the accompanying staff report and attached exhibits, the State Coastal Conservancy hereby finds that: Page 1 of 12 LAGUNITAS CREEK FLOODPLAIN AND RIPARIAN ENHANCEMENT 1.
    [Show full text]
  • NOAA Technical Memorandum NMFS
    NOAA Technical Memorandum NMFS OCTOBER 2005 HISTORICAL OCCURRENCE OF COHO SALMON IN STREAMS OF THE CENTRAL CALIFORNIA COAST COHO SALMON EVOLUTIONARILY SIGNIFICANT UNIT Brian C. Spence Scott L. Harris Weldon E. Jones Matthew N. Goslin Aditya Agrawal Ethan Mora NOAA-TM-NMFS-SWFSC-383 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service Southwest Fisheries Science Center NOAA Technical Memorandum NMFS The National Oceanic and Atmospheric Administration (NOAA), organized in 1970, has evolved into an agency which establishes national policies and manages and conserves our oceanic, coastal, and atmospheric resources. An organizational element within NOAA, the Office of Fisheries is responsible for fisheries policy and the direction of the National Marine Fisheries Service (NMFS). In addition to its formal publications, the NMFS uses the NOAA Technical Memorandum series to issue informal scientific and technical publications when complete formal review and editorial processing are not appropriate or feasible. Documents within this series, however, reflect sound professional work and may be referenced in the formal scientific and technical literature. Disclaimer of endorsement: Reference to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government. The views and opinions of authors expressed in this document do not necessarily state or reflect those of NOAA or the United States Government, and shall not be used for advertising or product endorsement purposes. NOAA Technical Memorandum NMFS This TM series is used for documentation and timely communication of preliminary results, interim reports, or special purpose information.
    [Show full text]
  • Instream Flow Requirements Anadromous Salmonids Spawning
    Scanned for KRIS State of California The Resources Agency Department of Fish and Game Instream Flow Requirements Anadromous Salmonids Spawning and Rearing LAGUNITAS CREEK, Marin County STREAM EVALUATION REPORT 86-2 APRIL 1986 IFIM study site near Tocaloma at about 35 cfs. IFIM study site near Gallager Ranch at about 22 cfs. ERRATA Page i Author Gary E. Smith2 Page 2 Paragraph 2, 14th line to Syncaris, it seems probable that the proposed summer and early Page 32 Recommendations, 3.a., first line If Nacasio Reservoir inflow during the preceeding month is Inside of back cover, photo caption, third line and deepened pools and Department of Fish and Game Stream Evaluation Report Report No. 86-2 Instream Flow Requirements, Anadromous Salmonids Spawning and Rearing, Lagunitas Creek, Marin County April, 1986 Gordon K. Van Vleck George Deukmejian Jack C. Parnell Secretary for Resources Governor Director The Resources Agency State of California Department of Fish and Game Instream Flow Requirements, Anadromous Salmonids Spawning and Rearing Lagunitas Creek, Marin County, I/ By Gary E. Smith 2 Abstract The Instream Flow Incremental Methodology was used to assess steelhead and coho salmon spawning and rearing streamflow/habitat relationships and requirements in Lagunitas Creek, Marin County, California. The annual flow regime developed considers individual species life stage needs. Approximately 37% of the average annual runoff is identified as being needed for spawning and rearing purposes. Typically, natural summer flows need augmentation and natural winter flows more than meet fishery needs. 1_/ Stream Evaluation Report No. 86-2, April 1986. Stream Evaluation Program. 2/ Environmental Services Division, Sacramento, California -ii- TABLE OF CONTENTS Page Abstract...................................
    [Show full text]
  • Circumambulation Pilgrimages Around Iona, Mount Tamalpais and Labyrinths
    Dominican Scholar Faculty Authored Books and Book Contributions Faculty and Staff Scholarship 10-27-2017 Circling Centre, Finding Our Way Home: Circumambulation Pilgrimages around Iona, Mount Tamalpais and Labyrinths Cindy Pavlinac Department of Art, Art History and Design, Dominican University of California, [email protected] Survey: Let us know how this paper benefits you. Recommended Citation Pavlinac, Cindy, "Circling Centre, Finding Our Way Home: Circumambulation Pilgrimages around Iona, Mount Tamalpais and Labyrinths" (2017). Faculty Authored Books and Book Contributions. 131. https://scholar.dominican.edu/books/131 This Contribution to a Book is brought to you for free and open access by the Faculty and Staff Scholarship at Dominican Scholar. It has been accepted for inclusion in Faculty Authored Books and Book Contributions by an authorized administrator of Dominican Scholar. For more information, please contact [email protected]. Circling Centre, Finding Our Way Home: Circumambulation Pilgrimages around Iona, Mount Tamalpais and Labyrinths Cindy Pavlinac Introduction Pilgrimage requires a journey. Humans are walkers, traversing the landscape seeking adventure and home. Walking pilgrimages along historic routes and concentrated journeys in a labyrinth all involve circling a centre. Places of natural grandeur have long attracted those undertaking journeys to sites of magic, prophecy, safety, hope and the supernatural. The landscape informs the journey and pilgrims notice things that can only be revealed by walking through that specific landscape. The boundaries between inner and outer landscape become blurred as the pilgrim enters an expanded relationship to the self. Walking engages the body while freeing the mind for deep contemplation and potential transformation. Following a labyrinth, a nature trail, or a saint’s footsteps requires surrendering control and trusting the journey.
    [Show full text]
  • Lagunitas Creek Watershed Sediment Reduction And
    CONSOLIDATED PROPOSAL FOR COASTAL NONPOINT SOURCE PROJECTS (GRANT AGREEMENT NO. 04-155-552-2) FINAL PROJECT REPORT Prepared by Marin Municipal Water District Friends of Corte Madera Creek Watershed Friends of Novato Creek Southern Sonoma County Resource Conservation District Sonoma Ecology Center In partnership with North Bay Watershed Association May 2008 Acknowledgements The following individuals and consultants provided valuable review, comments, construction and oversight of the various project elements and studies completed under this project: Consultants and Contractors Pacific Watershed Associates Harold Appleton, Prunuske Chatham, Inc. Kathie Lowrey, Prunuske Chatham, Inc Marin County Stormwater Pollution Prevention Program Sonoma Ecology Center County of Sonoma, GIS Dept. Laurel Collins, Watershed Sciences Gina Cuclis, Cuclis PR Funding for this project was provided by the State Water Resources Control Board under the Proposition 13 Coastal Nonpoint Source Pollution Control Grant Program with matching funds and in-kind contributions from the North Bay Watershed Association, California State Coastal Conservancy, the California Department of Fish and Game, Marin Municipal Water District, Friends of Corte Madera Creek Watershed, Ross Valley Sanitation District, Marin County Stormwater Pollution Prevention Program, Town of San Anselmo, Marin Conservation Corps, Friends of Novato Creek, Southern Sonoma County Resource Conservation District, Sonoma Ecology Center, landowners and citizens in Petaluma & San Antonio Creek watersheds, and numerous volunteer efforts throughout the project area. Final Report Consolidated Concept Proposal for Nonpoint Source Projects, Greater San Pablo Bay Area Grant Agreement No. 04-155-552-2 Table of Contents Page A. Project Summary……………………………………………………………….. 1 B. Project Location ……………………………………………...………………… 2 C. Project Performance …………………….…………………………….…...… 7 1. San Anselmo Creek Park: Riprap Removal and Restoration Project Planning and Implementation…………………………..…… 7 Project Performance..………………………………………………….
    [Show full text]
  • DRAFT City of Santa Cruz Habitat Conservation Plan Conservation
    DRAFT City of Santa Cruz Habitat Conservation Plan Conservation Strategy for Steelhead and Coho Salmon August 10, 2011 DRAFT HCP Fisheries Conservation Strategy Page 2 Table of Contents 1. Introduction ..................................................................................................................................... 9 2. Approach to the Conservation Strategy .................................................................................... 10 3. Biological Goals and Objectives .................................................................................................. 13 4. Avoidance and Minimization Measures ..................................................................................... 15 4.1. Water Supply Operations ...................................................................................................... 15 4.1.1. Water Diversions ............................................................................................................ 15 4.1.1.1. Minimizing the effects of City Diversions ............................................................. 16 4.1.1.2. Rationale for Developing Instream Flow Targets ............................................... 18 4.1.1.3. Liddell Spring Diversion .......................................................................................... 21 4.1.1.4. Reggiardo Creek Diversion .................................................................................... 24 4.1.1.5. Laguna Creek Diversion ........................................................................................
    [Show full text]
  • Spring Wildflower Adventures in the Greater San Francisco Bay Area
    Spring Wildflower Adventures in the Greater San Francisco Bay Area Author’s Note: This article “Spring Wildflower Adventures in the Greater San Francisco Bay Area” is also a chapter in my travel guidebook/ebookNorthern California Travel: The Best Options. Parallel coverage of nature in Northern California occurs in my latest travel guidebook/ebookNorthern California History Travel Adventures: 35 Suggested Trips. All my travel guidebooks/ebooks on California can be seen on myAmazon Author Page. By Lee Foster The refreshing opportunity for spring wildflower adventures makes mid-March to mid-May a joyous annual travel time in the San Francisco Bay Area. Each year’s bloom time will vary, due to the rain amount, daily temperatures, and cloud cover vs sun. Call ahead to the locations (see phones at end of this article) to be assured that your visit time will be optimal for bloom. Wildflowers please the fortunate viewer in many ways. Golden carpets of the small goldfields flowers or abundant clusters of poppies delight the eye and lift the spirit. More delicate and less revealing flowers, especially the Douglas iris, reward a searcher in the shadier woodlands. Highly specialized dashes of color, such as red larkspur, add punch to the green tapestry of spring. The variety in wildflowers stuns the imagination. Identifying wildflowers can excite some detective passion. The first reality is simply to enjoy the flowers. But knowing their names and collecting a personal record of memories in seeing them can be an enriching experience. Start with brochures available at some wildflower parks. Move on to Helen Sharsmith’s bookSpring Wildflowers of the San Francisco Bay Region.
    [Show full text]
  • Angel Island Angel Island Geography Location San Francisco Bay Coordinates 37°52
    Angel Island Angel Island Geography Location San Francisco Bay Coordinates 37°52′N 122°26′W / 37.86°N 122.43°W Area 1.2 sq mi (3.1 km2) Elevation 788.76 ft (240.41 m) Highest point Mount Caroline Livermore Country United States State California County Marin County City and County of San Francisco Demographics Population 57 Density 18.35/km2 (47.5/sq mi) Additional information California Historical Landmark Reference #: 529 Angel Island is an island in San Francisco Bay offering expansive 360° views of the San Francisco skyline, the Marin County Headlands and Mount Tamalpais. The entire island is included within Angel Island State Park and is administered by California State Parks. The island, a California Historical Landmark, has been used for a variety of purposes, including military forts, a US Public Health Service Quarantine Station, and a US Bureau of Immigration inspection and detention facility. The Angel Island Immigration Station on the northeast corner of the island, where officials detained, inspected, and examined approximately one million immigrants, has been designated a National Historic Landmark. Contents Geography History Fort McDowell Immigration station Angel Island State Park Ecology 2008 fire Access Geography Port of Angel Island Angel Island is the second largest island in area of the San Francisco Bay (Alameda is the largest). The island is so large that on a clear day, Sonoma and Napa can be seen from the north side of the island; San Jose can be seen from the south side of the island. The highest point on the island, almost exactly at its center, is Mount Caroline Livermore at a height of 788 feet (240 m).
    [Show full text]
  • Lagunitas Creek
    ORDER: WR 95-17 LAGUNITAS CREEK Order Amending Water Rights and Requiring Changes in Water Diversion Practices to Protect Fishing Resources and to Prevent Unauthorized Diversion and Use of Water October 26,1995 STATE WATER RESOURCES CONTROL BOARD CALIFORNIA ENVIRONMENTAL PROTECTION AGENCY STATE OF CALIFORNIA STATE WATER RESOURCES CONTROL BOARD In the Matter of ) ) FISHERY PROTECTION AND WATER ) RIGHT ISSUES OF LAGUNITAS CREEK ) ORDER: WR 95-17 ) Involving Water Right Permits 5633, ) SOURCE: Lagunitas 9390, 2800 and 18546 of Marin ) Creek Municipal Water District) ) (Applications 9892, 14278, 17317, ) COUNTY: Marin and 26242), ) ) Water Right Permits 19724 and 19725 ) (Applications 25062 and 35079) and ) Diversion of Water Under Claim of ) Pre-1914 Appropriative Water Rights ) by North Marin Water District, and ) ) Water Right License 4324 ) (Application 13965) and Diversion ) of Water Under Claim of Riparian ) Right by Waldo Giacomini ) ) ORDER AMENDING WATER RIGHTS AND REQUIRING CHANGES IN WATER DIVERSION PRACTICES TO PROTECT FISHERY RESOURCES AND TO PREVENT UNAUTHORIZED DIVERSION AND USE OF WATER TABLE OF CONTENTS PAGE 1.0 INTRODUCTION ...................................................... 1 2.0 BACKGROUND......................................................... 3 2.1 Description of Watershed .................................. 3 2.2 Hydrology (Precipitation and Streamflow) .................. 6 2.3 History of Development in the Watershed .................... 8 2.4 Summary of Water Right Claims .............................. 8 2.5 Expansion of Kent Lake (Chronology of Events) .................................................... 10 2.6 Complaints by Marin Municipal Water District and Trout Unlimited ............................. 12 2.7 Fish and Game Code Provisions ............................... 12 2.7.1 Fish and Game Code Section 5937.................... 12 2.7.2 Salmon, Steelhead Trout and Anadromous Fisheries Program Act ................ 12 2.8 Authority of State Water Resources Control Board ............................................
    [Show full text]
  • Major Streams and Watersheds of West Marin D
    3 1 Chilen o Va lle t y S R d I D St 80 Major Streams and Watersheds of West Marin d R San Anto o ni i o n R o d t Sa n n A A nton io Rd n a S 1å3 4 6 91 d R s West Marin Schools e y e Marshall P R etal t 1, BOLINAS-STINSON SCHOOL (BOLINAS) L um P a a R a k d m e WALKER CREEK lu vi ta 2, BOLINAS-STINSON SCHOOL (STINSON) lle Pe R S d t a 3, INVERNESS ELEM. SCHOOL t WATERSHED e R ou te 4, LAGUNITAS ELEM. SCHOOL 1 Eastshore W ils 5, LINCOLN ELEM. SCHOOL S on t H a å5 ill t R e d 6, MARIN SCHOOL OF THE ARTS R o u 4 t SOULAJULE RESERVOIR 7, NICASIO ELEM. SCHOOL e 1 8, SAN GERONIMO VALLEY ELEM. SCHOOL 6 L 7 a k e v 9, SHORELINE HIGH SCHOOL il le R d 9 8 10, SHORELINE INDEPENDENT STUDY S h 3 o 7 re 11, TOMALES ELEM. SCHOOL li ne H w 12, TOMALES HIGH SCHOOL y 13, WALKER CREEK RANCH S h o 14, WEST MARIN ELEM. SCHOOL r e 7 l i 3 n y e a w H ar h San M in ig w D H y N r te ova U ta to n S B i lv t 0 d e S d 6 n t a L S te s d 1 t a 7 R n v l o t o e u B 23 t m s e STAFFORD LAKE d 1 m H i o S o i g h A w th N d w e o e r a t va on to R y A d B 1 v R lv t G e d ran 0 a e S t A v ve 1 r m A h D lu t r n 7 De L o ta o ong rb e s Av a il e P H e s W v 3 S e A å 0 3 i y r e lo F b ra R n t ia c in D is o D P r g a St Hi hw k ate a 3 e y 1 B 1 vd 7 l l v 3 B 3 d 2 y 20 nd a la w w h o ig 6 R H 7 te ta N S o 41 v 43 Inverness a to B l y v LAGOON k d P t e s un 4 2 S 9 NICASIO RESERVOIR 0 Pt.
    [Show full text]
  • Controlled Burns on the Urban Fringe, Mount Tamalpais, Marin County, California1
    Controlled Burns on the Urban Fringe, Mount Tamalpais, Marin County, California1 Thomas E. Spittler2 Abstract: The California Department of Conservation, Division of Mines and Geology provided technical assistance to the California Department of Forestry and Fire Protection in assessing potential geologic hazards that could be affected by proposed prescribed burns on Mt. Tamalpais. This research yielded the following conclusions: (1) landsliding and surface erosion have contributed to the denudation of Mount Tamalpais; (2) Debris flows and surface erosion could affect property and the environment on and below the mountain; (3) The removal of chaparral will reduce the stability of the slopes; and (4) Prescribed burning may reduce the risk and lessen the destructive effects of wildfire and may therefore have significantly less impact on both landsliding and surface erosion than the probable wildfire event modeled by the California Department of Forestry and Fire Protection. The last conclusion is based on the Fig 1 ocation map showing the boundaries of following considerations: controlled burns . L the Mount Tamalpais Vegetation Management Plan separated in time and space would expose area and its relation to urbanizing areas of smaller slope areas to the effects of rainfall Marin County. than would a wildfire; a hot wildfire would damage the soil much more than a cool controlled fire; slope-damaging fire-fighting measures, such as tractor-constructed fire The Marin County Fire Department, in trails, would not be needed for controlled cooperation with the California Department of burns; and areas of geologic concern, such as Forestry and Fire Protection, has developed a colluvial-filled hollows, will be included in plan to reduce the threat of catastrophic the development of the prescription for wildfires through the use of prescribed burns controlled burns on Mount Tamalpais.
    [Show full text]
  • Evaluation of Coho and Steelhead Production in the San Geronimo Valley Headwaters of the Lagunitas Creek Watershed, 2006-2008
    Evaluation of Coho and Steelhead Production in the San Geronimo Valley Headwaters of the Lagunitas Creek Watershed, 2006-2008 Prepared by Christopher Pincetich, Ph.D., SPAWN Watershed Biologist Todd Steiner, M.S., SPAWN Executive Director Paola Bouley, M.S., SPAWN Conservation Program Director Ssssssssssssssssss Salmon Protection Salmon Protection And Watershed Network And Watershed PO Box 370 • Forest Knolls, CA 94933 Network Ph. 415.663.8590 • Fax 415.663.9534 PO Box 400 • Forest www.SpawnUSA.org Knolls, CA 94933 i Salmon Protection and Watershed Network (SPAWN) Evaluation of Coho and Steelhead Production in the San Geronimo Valley Headwaters of the Lagunitas Creek Watershed, 2006-2008 Table of Contents Abstract…………………………………………………………………………………………………...…1 Introduction……………………………………………………………….…………………….…………...1 Lagunitas Coho………………………………………….…………………………..……...…...1 Lagunitas Steelhead………………………………………….…………………….….…….....2 San Geronimo Valley Headwaters………………………………………….….………….....2 Salmon Protection and Watershed Network (SPAWN)………………...…..…………....2 Methods……………………………………………………………………………………………..…...…4 Smolt Trap Design and Location ………………………………………………...……...….4 Daily Monitoring………………………………………………………………………..…..……5 Data Analyses………………………………………………………………………………...…6 Fulton Condition Factor……………………………………………………………..……..…..6 Results……………………………………………………………………………………..……...….….…6 Coho Salmon………………………………………………………………………..…..…….…7 Steelhead……………………………………..……………………………………..…..………10 Other Aquatic Organisms ……………………………………..……………………..…...…14 Discussion……………………………………………………………………………………….……...…15
    [Show full text]