DOCSLIB.ORG

Middle Main Eel (PDF)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Middle Main Eel (PDF) 12 3° 55'0 "W 123 ° 52'30 "W 123 ° 50'0" W 123 °4 7'30 "W 123 °4 5'0" W 123 °4 2'30 "W 123°40'0"W 1 23° 3 7'30" W 1 23° 35 '0" W 1 23° 32 '30" W B 2 a Lar lc a b k o ee Cr e e 5 1 m S e 5 4 re 2 S C k l l C 3 w k r co i 4 Da ry e i i M M e t h f C re e t c t y a ns Can on 3 2 k C n a C C Bro w r x r h ee w a r A f th e k k B r e v e o e l e u G A l e e en D l e s ounta e l M k i r C r in a a n d n u o re C d R p l e l i t d l o s k i h C M a 7 M in eek d y r Cr C e is 11 S v re e a 12 e k c k D 10 8 o t 9 t v Pea C i n r e h Roa e d k e c P a n R e k 10 n th e a e o r 7 C R r a C l len 11 12 r d A e r 8 l 7 k e ek ig e k b e d r 12 Middle Main Eel Planninge 10 Watershed 89 10 n C re 9 i 11 12 e ek C s Cre l l W r 11 s 25 4 i k !( o M oo H reek r r C C 15 Dee k e 13 r e 18 14 C r C e 17 nack re ek b 16 K o st We 15 18 Fr Cree k 40°22'30"N Cre 17 s ek 14 15 tth ew 16 14 13 Ma 13 17 18 16 L 13 k i 14 e t k Existing Land Use e t Martin Cr e le re C 01S 03E V 15 a s 40 °2 2'30 "N n e r k D o ee u l r ze o in C n D 01Srt 04E T R 20 Ma ive h r k u 01S 05E N e e r wm r e m k a n C e 24 a 21 n e 19 r 22 C C 23 r n e r 23 e a k B k k 19 ee Perr e 24 21 k t C r ott Cre 20 n e 22 19 la k rth Cre k 24 B 24 k o e 23 k e e s w 20 23 e e e o r B e r 22 r C C 21 C e an l n p o m p s w p e a Ca N K m bi o n Cre h ek 26 T V i F la ek n r t Cre n e u k Boul d m 25 29 27 e R 28 e o r E 30 d a a South Fork Bar n C o d e 26 R C le l Poison Oak Creek Watersh ed tto 25 a Ma R m e i r 30 25 29 v o 29 28 27 25 n 26 28 e r Paci fi c Lu mber Co mpa ny C 26 k r 27 ee e B F C r e ea o k r r le B Cr e i l e v l o ek s e r y t d Cr k oi so D y ee E R n k e P O D e o yer e r a k v u i l Wh itl ow R anch C t C l t e e R a r l 1 k e L Road i F e oop S e k k v r 0 e Thomp son Creek Watersh ed r e P e e 7 C e k r ipe d 35 r e Decke L r l k i n e e C 33 u 40°20'0"N e e Al r r C f d 36 31 r f 32 34 erp o C e oi C d e u n B l k l 35 t Ro ad an Hay fie B urm 36 31 T h S u C 32 35 ek n a 33 34 36 31 32 r n C e m 34 35 er y Pe rr y Ran ch e L rn k r 33 40 °2 0'0" N o a e o C n e n 36 L e r um Weott C C S l t S l r k e e e e B e w r e Mc Cann 3 C k e k l n e l re D 16 n C a n r N n R M o 2 e wto oad C c Can c k n 1 h M e Road k a 4 e e M r 6 e 16 c C 2 r M 5 w C k o at ty L Six Rivers National e e e lb a Six Rivers National B r E 3 2 r a 1 C s 5 b l n i 4 o e ek s v e 3 2 re n e Cameron Creek Watershed 5 C i C V a l D e Mi l A b 4 Littl n v r e o Dyerv e D n R i ll S e u u e o Lo z o n Sequoia k e o e p o n m f R t R h o a L i e a C v G d o r e ia B e s r n k r e t e i Creek ts r e d k Hoopes Partnership an C C g m a e le n e es C o k y e C er Cree o 11 F 7 r p 8 e e S11eq u E Fearrien C o n k o ia o 910 R 7 y y o t 10 1 a 12 8 t 01 d 9 y y n n t d 10 t a 12 S 12 9 u u n 78 n K e o 10 e q R l 11 o s u o u ey La o ee u n ia w in Cr k e C o unta 11 12 reekWhi tl o C o o M C t C t d d R d r y Wi lli ford oa reek E lk C eek R l l y ry C o t o w re e t k M a C k o e n o i Cre d a i e le m o S Kahn b n o b n a C n 40°17'30"N i C 18 16 i m r r 17 15 14 La s u 13 s u T Humboldt Redwoods State Park ie T Lo okou t R 14 d H 18 H o eek a ad r o Eel Rock s C R 17 r s k 16 u e D r e sa 15 14 13 T r d F o 13 k 40 °1 7'30 "N C R r R y C ee e k o a 18 17 nle r g ee s R st L n l l o d r a e C r i C Ts arn d R B 16 k l o d L k El Elk C ck R 15 r 13 B r e a o k e E Dr r h F 14 e e k a rt k b No re c C e 02S 03E o k d e l R R E d Coleman Creek Watershed l C R y r e k n e E e c o 02S 04E o l R d k l o l C 19 e O 20 E 02S 05E 22 23 ld 24 24 19 O Blocksburg t 23 21 20 S h So reek 22 23 19 rc uth F ork Conl ey C 21 24 Ch u A Mi reek v l l C 20 k e ree n d 24 u d a 21 C W Lo R o n d e rt R k a e w C a o o s o a ew ry e o t R d the St McB ri de Pro perti es t e 22 e f C R oa e y r r R e t ht d C u C m n k o e e a y R e y ee v G t h e d B b r c b rr C A i a C 23 o S a s e s i Conley Creek Watershed D K r n y n th o e t r s B y C o M Myers Flat r 29 N 30 e e 25 k 26 28 26 25 30 R d 27 27 h 29 28 26 it Jay S m 25 29 30 28 k 27 S La une r 26 e k e e Dry C r e reek r 25 Basin Cr e C r C ek y ve le o n o o H 40°15'0"N C d R P We bs te r lch um A Fearrien u rn G 32 Ba e 35 33 34 32 Li n 31 Basin Creek Watershed 35 k 254 33e 34 35 40 °1 5'0" N 36 M 31 e !( r e i l n Hoover Creek W atersh ed l 36 C 36 a C L L r k .
Load more

Recommended publications
  • Lower Eel River and Van Duzen River Juvenile Coho Salmon (Oncorhynchus Kisutch) Spatial Structure Survey 2013-2016 Summary Report
    Pacific States Marine Fisheries Commission in partnership with the State of California Department of Fish and Wildlife and Humboldt Redwood Company Summary Report to the California Department of Fish and Wildlife Fisheries Restoration Grant Program Grantee Agreement: P1210516 Lower Eel River and Van Duzen River Juvenile Coho Salmon (Oncorhynchus kisutch) Spatial Structure Survey 2013-2016 Summary Report Prepared by: David Lam and Sharon Powers December 2016 Abstract Monitoring of coho salmon population spatial structure was conducted, as a component of the California Department of Fish and Wildlife’s Coastal Salmonid Monitoring Program, in the lower Eel River and its tributaries, inclusive of the Van Duzen River, in 2013, 2014, 2015, and 2016. Potential coho salmon habitat within the lower Eel River and Van Duzen River study areas was segmented into a sample frame of 204 one-to-three kilometer stream survey reaches. Annually, a randomly selected subset of sample frame stream reaches was monitored by direct observation. Using mask and snorkel, surveyors conducted two independent pass dive observations to estimate fish species presence and numbers. A total of 211 surveys were conducted on 163 reaches, with 2,755 pools surveyed during the summers of 2013, 2014, 2015, and 2016. Coho salmon were observed in 13.5% of reaches and 7.5% of pools surveyed, and the percent of the study area occupied by coho salmon juveniles was estimated at 7% in 2013 and 2014, 3% in 2015, and 4% in 2016. i Table of Contents Abstract .........................................................................................................................................................
    [Show full text]
  • Lower Eel River Total Maximum Daily Loads For· Temperature and Sediment
    ., U.s. Environmental Protection Agency Region IX Lower Eel River Total Maximum Daily Loads for· Temperature and Sediment Approved by: l~ltl(Jl Alexis Strauss, Date Director, Water Division TABLE OF CONTENTS CHAPTER 1: INTRODUCTION................................................................................................ 1 1.1. OVERVIEW OF THE TMDL PROGRAM ................................................................... 1 1.2. WATERSHED CHARACTERISTICS .......................................................................... 2 1.3. ENDANGERED SPECIES ACT CONSULTATION.................................................... 4 1.4. DOCUMENT ORGANIZATION .................................................................................. 5 CHAPTER 2: PROBLEM STATEMENT ................................................................................. 7 2.1. WATER QUALITY STANDARDS............................................................................... 7 2.2. FISH POPULATION AND ENDANGERED SPECIES CONCERNS......................... 9 2.3. STREAM TEMPERATURE PROBLEMS .................................................................. 14 2.4. SEDIMENT PROBLEMS ............................................................................................ 26 CHAPTER 3: TEMPERATURE TMDLS ............................................................................... 30 3.1. INTERPRETING THE EXISTING WATER QUALITY STANDARDS FOR TEMPERATURE ........................................................................................................
    [Show full text]
  • California North Coast Offshore Wind Studies
    California North Coast Offshore Wind Studies Overview of Geological Hazards This report was prepared by Mark A. Hemphill-Haley, Eileen Hemphill-Haley, and Wyeth Wunderlich of the Humboldt State University Department of Geology. It is part of the California North Coast Offshore Wind Studies collection, edited by Mark Severy, Zachary Alva, Gregory Chapman, Maia Cheli, Tanya Garcia, Christina Ortega, Nicole Salas, Amin Younes, James Zoellick, & Arne Jacobson, and published by the Schatz Energy Research Center in September 2020. The series is available online at schatzcenter.org/wind/ Schatz Energy Research Center Humboldt State University Arcata, CA 95521 | (707) 826-4345 California North Coast Offshore Wind Studies Disclaimer This study was prepared under contract with Humboldt State University Sponsored Programs Foundation with financial support from the Department of Defense, Office of Economic Adjustment. The content reflects the views of the Humboldt State University Sponsored Programs Foundation and does not necessarily reflect the views of the Department of Defense, Office of Economic Adjustment. This report was created under Grant Agreement Number: OPR19100 About the Schatz Energy Research Center The Schatz Energy Research Center at Humboldt State University advances clean and renewable energy. Our projects aim to reduce climate change and pollution while increasing energy access and resilience. Our work is collaborative and multidisciplinary, and we are grateful to the many partners who together make our efforts possible. Learn more about our work at schatzcenter.org Rights and Permissions The material in this work is subject to copyright. Please cite as follows: Hemphill-Haley, M.A., Hemphill-Haley, E. and Wunderlich, W. (2020).
    [Show full text]
  • Historic American Engineering Record Western Regional Office National Park Service U.S
    Van Duzen River ttridge (Alton Bridge) HAER No. CA-129 Spanning Van Duzen River on California Slate Highway 10! Alton vicinity Humboldt County ///IT £> California /-1 A} /J?" // / PHOTOGRAPHS WRITTEN HISTORICAL AND DESCRIPTIVE DATA Historic American Engineering Record Western Regional Office National Park Service U.S. Department of the Irterior San Francisco, California 94102 t UCAL HISTORIC AMERICAN ENGINEERING RECORD IX- ALT if Van Duzen River Bridge (Alton Bridge) HAER No. CA-129 Location: Spanning the Van Duzen River on California State Highway 101 Alton vicinity, Humboldt County, California UTM: 10 402887.4487745 Quad: Fortuna, California Date of Construction: 1924-1925 Engineer: Harlan D. Miller Bridge Department California Division of Highways Present Owner: California Department of Transportation District 1 1656 Union Street Eureka, California 95501 Present Use: Highway bridge Significance: The Van Duzen River Bridge, also known as the Alton Bridge, was determined eligible for listing in the National Register of Historic Places in 1986. It represents a transitional design in the evolution of concrete arch bridges, and is the earliest surviving bridge designed under the direction of Harlan D. Miller, California's second state bridge engineer and the man most responsible for providing engineering design and aesthetic direction for California bridges between 1924 and 1940. Report prepared by: John W. Snyder Chief Architectural and Historic Studies California Department of Transportation 1120 N Street Sacramento, California 95814 Van Duzen River Bridge (Alton Bridge) HAER No. CA-129 (Page 2) PARTI. HISTORICAL INFORMATION The Van Duzen Bridge crosses the Van Duzen River just south of Alton in Humboldt County. The river was originally called Van Dusen's Fork of the Eel River, being so named in January 1850 after a member of the Gregg party of gold prospectors.
    [Show full text]
  • Geology and Ground-Water Features of the Eureka Area Humboldt County, California
    Geology and Ground-Water Features of the Eureka Area Humboldt County, California By R, E. EVENSON GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1470 Prepared in cooperation with the California Department of Water Resources UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1959 UNITED STATES DEPARTMENT OF THE INTERIOR FRED A. S EATON, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director The U. S. Geological Survey Library has cataloged this publication as follows: Evenson, Robert Edward, 1924- Geology and ground-water features of the Eureka area, Humboldt County, California. Prepared in cooperation with the California Dept. of Water Eesources. Washing­ ton, U. S. Govt. Print. Off., 1959 iv, 80 p. maps, diagrs., tables. 25 cm. (U. S. Geological Survey Water-supply paper 1470) Part of illustrative matter fold. col. in pocket. Bibliography: p. 77. 1. Water-supply California Humboldt Co. 2. Water, Under­ ground California Humboldt Co. i. Title: Eureka area, Hum­ boldt County, California. (Series) TC801.U2 no. 1470 551.490979412 GS 59-169 copy 2. GB1025.C2E9 For sale by the Superintendent of Documents, U. S. Government Printing Office Washington 25, D. C. CONTENTS Page Abstract___-_____-__--_--_-_-_________-__--_--_-_-______ ___ 1 Introduction._____________________________________________________ 2 Purpose and scope of the work________ _________________________ 2 Location and extent of the area_______________-_-__-__--________ 3 Previous work_______________________________________________ 3 Well-numbering system________________________________________
    [Show full text]
  • Environmental Setting
    Draft PEIR July 2010 8.5 FLOODING This section evaluates flooding impacts associated with the proposed General Plan, including whether implementing the plan will: (1) permit the construction of housing within a 100-year Flood Hazard Area; (2) allow structures within a 100-year Flood Hazard Area that impede or redirect flood flows; and (3) expose people or structures to a significant risk involving flooding as a result of levee failure or mudflows. Water quality and drainage impacts are evaluated in Sections 5.1 and 7.3, respectively. Environmental Setting Watersheds The Eel River has the largest watershed in Humboldt County. The river flows in a northwesterly direction, turning north as it passes Fortuna, then west at Fernbridge before reaching the Pacific Ocean north of Ferndale. The Fortuna Planning Area’s watersheds represent a small portion of the Eel River Watershed and either replenish local groundwater supplies or drain to the Eel and Van Duzen rivers and their tributary streams. The Rohner Creek and Strongs Creek watersheds are the largest in the Fortuna Planning Area. Smaller watersheds in the Planning Area include the Jameson Creek and Mill Creek watersheds; both tributary to Strongs Creek. The Hillside Creek watershed is a tributary of Rohner Creek and the North Fortuna drainage area discharges directly to the Eel River. North of the Fortuna city limits are the Palmer and Little Palmer Creek watersheds. Wolverton Gulch watershed lies to the south. Planning Area watersheds, rivers, and streams serve as natural resources, storm water drainages, and flood conveyance channels. Surface Water Flows Surface water flows have shaped the Planning Area topography.
    [Show full text]
  • The Legacy of the Log Boom Humboldt County Logging from 1945 to 1955 Logging in Humboldt County in Northwestern California Began in 1850
    Paul G. Wilson The Legacy of the Log Boom Humboldt County Logging from 1945 to 1955 Logging in Humboldt County in northwestern California began in 1850. When settlers first saw the giant old growth coast redwoods in Humboldt County they were in awe of them. These trees had diameters up to 30 feet and heights up to almost 400 feet. Old growth redwood trees are the oldest living things on earth; they can live about two thousand years. The settlers of Humboldt County had a respect for the redwoods; however, the settlers saw an immediate profit to be made. Old growth redwood lumber was used to build houses, railroad ties, shingle bolts, fence posts, and grape stakes.1 Redwood timberland in Humboldt County was located near the coast and extended twenty-five miles inland. The mills that cut the redwood logs into dimension sized lumber were located on the shores of Humbolt Bay. Humboldt Bay was a safe place for ocean vessels to pick up loads of redwood lumber to be sent to San Francisco Bay. Lumber vessels were often overloaded with redwood lumber. Because the vessels were piled with lumber, the vessels were believed to be unsinkable.2 Redwood lumber was sent all over the world for its preference in woodworking. In 1878 the United States government passed the Timber and Stone Act which allowed loggers to buy 160 acres of timberland for $2.50 per acre as long as the loggers "improved" the land through logging and ranching. Loggers acquired thousands of acres of redwood land and often formed partnerships to begin lumber companies.
    [Show full text]
  • COASTAL CUTTHROAT TROUT Oncorhynchus Clarkii Clarkii (Richardson)
    COASTAL CUTTHROAT TROUT Oncorhynchus clarkii clarkii (Richardson) Moderate Concern. Status Score = 2.7 out of 5.0. Coastal cutthroat trout populations in California are small, fragmented, and face multiple threats, including cumulative impacts from land use practices and predicted outcomes of climate change in their range. However, their numbers appear to be stable in the few watersheds they inhabit along the Northern California coast. Description: Coastal cutthroat trout are similar in appearance to coastal rainbow trout (O. mykiss) but have heavier spotting, particularly below the lateral line, and heavy spots on ventral fins. Adults have spotting on the lower mandible and more pointed heads than coastal rainbow trout. The spots become nearly invisible when fish become silvery during smolting and migrations to and from the sea. Mature fish in fresh water have a dark coppery or brassy appearance, especially on the fins (Behnke 1992, Moyle 2002). Cutthroat trout are more slender than rainbow trout and possess characteristic red to orange to yellow slashes under the mandibles, though the slashes are rarely visible until the fish reach over 80 mm total length (TL) (Scott and Crossman 1973, Behnke 1992). Larger fish have long maxillary bones extending past the eye. Well-developed teeth are found on the jaws, vomer, palatines, tongue, and sometimes on the basibranchial bones (Rizza 2015). The dorsal fin has 9-11 rays, the anal fin 8-12 rays, the pelvic fins 9-10 rays, and the pectoral fins 12-15 rays. There are 15-28 gill rakers on each arch and 9-12 branchiostegal rays. The caudal fin is moderately forked and scales are smaller than those of rainbow trout, with 140-200 along the lateral line (Behnke 1992).
    [Show full text]
  • 2006 Post Extraction Report
    COUNTY OF HUMBOLDT EXTRACTION REVIEW TEAM (CHERT) 2006 POST-EXTRACTION REPORT FINAL Prepared by: Doug Jager, Randy Klein, Andre Lehre, Bill Trush County of Humboldt Extraction Review Team (CHERT) For the Humboldt County Board of Supervisors September 12, 2008 A Discussion Draft of this report was issued April 4, 2008 with a public review period ending May 1, 2008. No comments were received on the Discussion Draft. This version represents the Final 2006 CHERT Post-extraction Report INTRODUCTION This report presents an overview of the Humboldt County 2006 gravel extraction season, providing information on mining volumes, methods, and success of mine operators in meeting approved plans. The County of Humboldt Extraction Review Team (CHERT) provided site-specific recommendations on extraction designs submitted by the operators and their consultants, as did agencies with regulatory and oversight responsibilities (US Army Corps of Engineers, National Marine Fisheries Service, California Department of Fish and Game). Recommendations were based on field reviews at each site along with reviews of aerial photos and topographic and hydrologic information provided by the operators as required by the US Army Corps of Engineers 2004 Letter of Permission (LOP), and individual permits obtained by several operators. For background, The Humboldt County Board of Supervisors appointed CHERT in 1992 to provide scientific oversight to Mad River gravel extraction, which had arrived at an impasse over environmental concerns. In 1996 the CHERT role was expanded to include most riverine extraction sites in Humboldt County. Additional details on CHERT’s role have been presented in earlier post-extraction reports (accessible at www.county.humboldt.com).
    [Show full text]
  • "Van Duzen River and Yager Creek Total Maximum Daily Load for Sediment: Report, 16 December 1999" | US EPA ARCHIVE
    U.S. Environmental Protection Agency Region IX Van Duzen River and Yager Creek Total Maximum Daily Load for Sediment Approved by: original signed by 16 December 1999 ____________________ ____________ Alexis Strauss Date Director, Water Division TABLE OF CONTENTS Executive Summary .......................................................................................... iv Chapter 1 - Watershed Overview ................................................................... 1 A. Physical and Biological Setting ...................................................... 1 B. Landownership and Community Involvement ............................... 6 C. Clean Water Act 303(d) and Total Maximum Daily Loads ....... 8 Chapter 2 - Water Quality Concerns (Problem Statements) .............................. 11 A. Lower Basin ............................................................................... 12 B. Middle Basin ............................................................................... 19 C. Upper Basin ............................................................................... 21 D. Summary of Water Quality Concerns ........................................... 22 Chapter 3 - Water Quality Goals (Numeric Targets) ........................................... 24 A. Introduction ............................................................................... 24 B. Description of Instream Sediment Targets ............................... 25 C. Description of Hillslope Sediment Delivery Targets ................... 29 D. Summary of Comparison between
    [Show full text]
  • Geology Senior Theses
    Senior thesis, Department of Geology, Humboldt State University 1968-1970 A Study of the Western Triassic and Paleozoic Belt - Ironside Douglas, Steve Mountain Batholith Relationship as Exposed in the New River 1968 Gorge, Trinity County, California The Alkaline Igneous Rocks of Northwestern Humboldt Meyer, Charles E. 1968 County An Ultramafic-Granitic Contact in the Southeastern Trinity Brundage, Tom 1970 Alps McFarlan, Joseph M. Petrologic Study Near Trinity Lake, California 1970 Evidence for an Ophiolitic Site in the Western Paleozoic and Raschen, Rory E. 1970 Triassic Belt of Northwestern California Stein, Catherine M. Depths of Emplacement of some Franciscan Pillow Lavas 1970 1971-1972 A Preliminary Study of the Heavy Minerals from the Salmon Lant, Richard A. 1969 River, Siskiyou County, California Geology of the Shelter Cove Area, Humboldt County, Pape, Richard F. 1971 California Paleontology and Stratigraphy of aSection along Boulder Parke, D. L. 1971 Creek, Humboldt County, California Tuttle, Daniel J. The Geology of Grizzly Creek, Humboldt County, California 1971 The Paleontology of the Falor Formation, Humboldt County, Young, Richard B. 1971 California Geology of the Area Southwest of Garberville, Humboldt Abbay, Thomas R. 1972 County, California Geologic Reconnaissance of the Gold Bluffs Formation for the DeMouthe, Jean F. 1972 Purpose of Determining its Origin Geology of a Portion of theWeaverville Formation at Gibbs, Ronald B. 1972 Hyampom, Trinity County, California Tula, Alex Franciscan Geology at Patricks Point, California 1972 1973 Geology of a Portion of the Franciscan-Yager Contact, Dyer, Paul 1973 Bridgeville, Humboldt County, California Sediment Distribution in Central Humboldt Bay and Gera, Andrew 1973 Relationship to Bathymetry and Hydrodynamics Hankins, Donna B.
    [Show full text]
  • 2012 Post Extraction Report
    COUNTY OF HUMBOLDT EXTRACTION REVIEW TEAM (CHERT) 2012 POST-EXTRACTION REPORT DISCUSSION DRAFT Prepared by: Randy Klein, Doug Jager, Andre Lehre and Bill Trush County of Humboldt Extraction Review Team (CHERT) For the: Humboldt County Board of Supervisors February, 2013 TABLE OF CONTENTS INTRODUCTION ........................................................................................................................................................ 1 Humboldt County Instream Gravel Extraction Sites and Extraction Terminology .................................................. 3 Habitat Enhancement Activities ............................................................................................................................... 4 2012 EXTRACTION SUMMARIES ........................................................................................................................... 6 River Reach Extraction Volumes ............................................................................................................................. 6 Performance Issues: 2012 ......................................................................................................................................... 9 APPENDIX A: HISTORICAL EXTRACTION VOLUME SUMMARIES ............................................................. 11 INTRODUCTION This report presents an overview of the Humboldt County gravel extraction for the 2012 season. Information on mining volumes, methods, and success of mine operators in meeting approved plans are reported herein.
    [Show full text]