DOCSLIB.ORG

Ocean Crust, Fossils, and an Unconformity: Bedrock Geology of Ripogenus Dam

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Bedrock Geology of Ripogenus Dam Maine Geological Survey Maine Geologic Facts and Localities June, 2018 Ocean crust, fossils, and an unconformity: Bedrock Geology of Ripogenus Dam 45o 52’ 54” N, 69o 10’ 35” W Text by Ian Hillenbrand Maine Geological Survey, Department of Agriculture, Conservation & Forestry 1 Bedrock Geology of Ripogenus Dam Maine Geological Survey Introduction Did you know you can visit a mid-ocean ridge, put your finger on the gap of time related to a mountain building event, and observe coral fossils at one locality in northern Maine? At Ripogenus Dam, the head of Ripogenus Gorge, ancient bedrock recording Maine’s geologic past is exposed and freed from the glacial till which typically covers it. The 92-foot high by 702-foot long dam was constructed along the West Branch of the Penobscot in 1916, damming Chesuncook Lake to provide hydroelectric power for a paper mill in Millinocket. When the dam is opened, as in 2017, it releases incredibly large amounts of water. Maine Geological Survey Photo by Ian Hillenbrand Ian by Photo Figure 1. Chesuncook Lake viewed from Ripogenus Dam. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 2 Bedrock Geology of Ripogenus Dam Maine Geological Survey Logging History: Sluiceway The paper industry played a large role in the recent history of this region. The spruce forests along the West Branch of the Penobscot have been harvested since at least the 19th century, with logs rafted through the gorge to sawmills as far south as Bangor. Before the construction of the dam, Ripogenus Gorge was altered by log driving rivermen with dynamite and stone- filled timber cribs to prevent jamming. The hydroelectric dam was constructed in 1916 to power paper mills in Millinocket. McKay Power Station was constructed as a retrofit in 1953. The dam impounds the largest storage reservoir ever built with private funding. 2,400 cubic feet per second of the river’s flow is diverted through a mile-long penstock to the McKay Power Station. Some photographs from Maine Geological Survey construction of the dam are available online. To Hillenbrand Ian by Photo allow for the transport of pulpwood after the Figure 2. Sluiceway (in foreground) with Ripogenus dam in dam’s construction a sluiceway was installed background. and used until 1971. After this time, Great Northern Paper Company began trucking the lumber to the mill via the Golden Road. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 3 Bedrock Geology of Ripogenus Dam Maine Geological Survey Geologic Setting Ripogenus gorge lies on the east limb of the Caribou Lake Anticline, part of the Boundary Mountains-Bronson Hill Anticlinorium (Kusky, 1994). The region was first mapped by Griscom (1976), and later mapped at a more detailed scale by Schoonmaker and Kidd (2013). Ripogenus Gorge exposes Silurian to Devonian sedimentary rocks of the Ripogenus Formation which unconformably overlie the Ordovician Dry Way volcanics. These rocks are part of a sequence as old as Cambrian and as young as Devonian. Older rocks in the region include the Cambrian Hurricane Mountain and Dead River Formations (Boom House Group on the geologic map). These units are intruded by the Devonian Katahdin Granite and overlain by deep water sediments of the Figure 3. Geologic map of the Ripogenus Dam area, modified from Seboomook group. Schoonmaker and Kidd (2013). Maine Geological Survey, Department of Agriculture, Conservation & Forestry 4 Bedrock Geology of Ripogenus Dam Maine Geological Survey Geologic Setting Figure 4. The stratigraphy of the Harrington Lake Quadrangle, modified from Griscom (1976) by Kusky et al. (1994). Box indicates the units exposed here. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 5 Bedrock Geology of Ripogenus Dam Maine Geological Survey Dry Way Volcanics - Pillow lavas The greenish to dark brown massive rocks on the south side of the river are basalt, a fine-grained igneous rock largely made of the minerals feldspar and pyroxene. These particular rocks have been named the Dry Way Volcanics. Looking closely at the outcrops, you may be able to find rounded, teardrop-like shapes within the basalt. Geologists refer to these structures as pillows, and they form when hot basaltic lava is erupted underwater. For more on pillow lavas in Maine, check out the GFL Pillow Lavas I have Known. Research by Schoonmaker and Kidd (2006) shows that these rocks are geochemically similar to basalts found at a mid- ocean ridge. This means that rocks that once were at the middle of an ocean (like the mid-Atlantic ridge) are now in the middle of Maine! Maine Geological Survey Photo by Ian Hillenbrand Ian by Photo Figure 5. Large outcrop of pillow basalt at the base of the dam. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 6 Bedrock Geology of Ripogenus Dam Maine Geological Survey Thin chert bed representing ocean deposits Within the Dry Way Volcanics, and between basalt pillows, you may find thin sections of yellow-green to purple, fine grained rock often one to two cm thick and occasionally up to 10 cm. This is a metamorphosed sedimentary rock primarily composed of silica called chert. It was deposited as sediment onto the pillow lavas while they were exposed on the ocean floor. The best exposure of this type of rock occurs right next to the concrete base of the dam and best viewed when the water discharge is low. The yellow-green and, in places, purple chert bed is up to 10 cm thick. These layers of chert are parallel with each other and close to vertical in orientation, showing the sediments were originally deposited horizontally in an ancient ocean. Maine Geological Survey Photo by Ian Hillenbrand Ian by Photo Figure 6. Green to purple bed of chert between green basalt of the Dry Way Volcanics. Field notebook for scale. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 7 Bedrock Geology of Ripogenus Dam Maine Geological Survey Ripogenus Formation - basal conglomerate Rocks on the northern side of the river differ greatly from those on the south; these are metamorphosed sedimentary rocks, and are significantly younger (by as much as 10 million years) than the Dry Way Volcanics. These rocks are difficult to reach, and best accessed during periods of low flow. At a few locations you may observe a sharp line between the green massive basalt and a reddish rock made of pebbles and sandstone, which is the contact between the two units. Within this 1 to 3 meter thick unit are a few red pebbles of jasper, an opaque form of quartz sometimes used in jewelry. Geologists refer to the rule of inclusions, which states that the pebbles must be older than the rock they are within. A rock made of many large clasts is called a conglomerate. Geologists attribute the gap in the geologic record to uplift and erosion of the older unit during a mountain building event. Such a gap is referred to as an unconformity, and this particular unconformity is attributed to the Taconic Orogeny. Maine Geological Survey Hillenbrand Ian by Photo Figure 7. A yellow field notebook lies on top of a thin horizon of pebble conglomerate in the base of the Ripogenus Formation. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 8 Bedrock Geology of Ripogenus Dam Maine Geological Survey Quartzose and Calcerous Sandstones of the Ripogenus Formation A few meters of yellow rock sit just above the basal conglomerate. This is sandstone, mostly made up of the mineral quartz. Above these rocks, just below and above the spillway are rocks containing conspicuous rows of 10 to 20 cm thick pits (Kusky et al., 1994). These pits are the result of weathering of calcareous material within the sandstone, which erodes at a much faster rate than the rest of the sandstone. These sedimentary rock types are typically deposited in a shallow ocean (Kusky et al., 1994). Similar rocks were deposited at the same time along the Bronson Hill-Boundary Mountains Anticlinorium as far south as Connecticut and Massachusetts (Kusky et al., 1994). Maine Geological Survey Photos by Ian Hillenbrand Ian by Photos Figure 8b. Closeup of a pit in calcareous sandstone of the Ripogenus Formation. Note the white highlights on the elliptical pit where calcite, Maine Geological Survey dissolved from the calcareous rock, has been Figure 8a. Pitted sandstone (top) overlies deposited. more massive quartzose sandstone. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 9 Bedrock Geology of Ripogenus Dam Maine Geological Survey Fossils in the limestone In some calcareous pits of the Ripogenus Formation you may find fossils of corals and stromatoporoids. Stromatoporoids are a class of aquatic invertebrates that were common in the Ordovician through the Devonian. Bradley et al. (2000) recovered fossilized teeth from a conodont, a sea creature that resembled eels, in the cliffs above the dam. Conodonts are used by geologists as an important tool for dating and correlating Palaeozoic rocks around the world because of their abundance, their highly diversified and rapidly evolved morphology and their wide distribution. The conodonts recovered from the Ripogenus formation lived between 420 and 415 million years ago (Bradley et al., 2000). Figure 9b. Scanning electron microscope images of fossilized conodont teeth from Bradley et al. (2000). Samples 1 through 5 were recovered from the Ripogenus Formation. Maine Geological Survey Photo by Ian Hillenbrand Ian by Photo Figure 9a. Coral fossils in the limestone, field notebook for scale. Maine Geological Survey, Department of Agriculture, Conservation & Forestry 10 Bedrock Geology of Ripogenus Dam Maine Geological Survey Faults The bedrock around Ripogenus Dam is cut by several faults, none of which are currently active. At least three faults are in the area just below the dam. One fault, which is shown on the geologic map, is in the West Branch of the Penobscot River.
Recommended publications
  • Snowmobile Trail Map 2021

    Snowmobile Trail Map 2021

    KATAHDIN AREA Snowmobile Trail Map 2021 ADVERTISER LOCATOR 1 The Nature Conservancy 8 Katahdin Federal Credit Union 14 Shin Pond Village 21 Scootic In 2 Katahdin Inn & Suites Millinocket Memorial Hospital 15 5 Lakes Lodge 22 Libby Camps 3 Baxter Park Inn 9 Matagamon Wilderness 16 Flatlanders 23 River Driver’s Restaurant 4 Pamola Motor Lodge 10 Raymond’s Country Store 17 Bowlin Lodge 24 Friends of Katahdin Woods & Waters Katahdin Area Chamber of Commerce 1029 Central Street 5 Katahdin General Store 11 Chester’s 18 Katahdin Valley Motel 25 Mt. Chase Lodge Millinocket, ME 04462 6 Baxter Place 12 Brownville Snowmobile Club 19 Chesuncook Lake House 7 New England Outdoor Center 13 Wildwoods Trailside Cabins 20 Lennie’s Superette 207-723-4443 KatahdinMaine.com Advertiser List 1 New England Outdoor CenterO Eagle Advertiser List xbow Rd 470000 480000 490000 500000 2 Katahdin510000 Inn & Suites 520000 530000 540000 550000 ITS 560000 570000 Allagash Lake J o 1 New England Outdoor Center 5130000 h 3 Baxter Park Inn 86 Lake d 5130000 n m R s kha Advertiser 2 Katahdin 4 Pamola List Inn Lodge& Suites MAP LEGEND B Haymock Pin Millinocket r id Lake 1 New 3 BaxterEngland Park Outdoor Inn Center Li 71D g Lake 5 Kathdin General Store22 bb e y Pinnac Rd 2 Katahdin 4 Pamola Inn Lodge& Suites le Grand ITS 6 Katahdin Federal Credit Union Lo 11 TO THE o Lake Umcolcus 83 ITS Corridor Trails 3 Baxter 5 Kathdin 7Park Raymond’s Inn General Store TRAINS p Seboeis Lake 4 Pamola 6 Katahdin 8 Lodge Wildwoods Federal TrailsideCredit Union Millimagassett 3A Groomed Local Club Tr.
  • River Related Geologic/Hydrologic Features Abbott Brook

    River Related Geologic/Hydrologic Features Abbott Brook

    Maine River Study Appendix B - River Related Geologic/Hydrologic Features Significant Feature County(s) Location Link / Comments River Name Abbott Brook Abbot Brook Falls Oxford Lincoln Twp best guess location no exact location info Albany Brook Albany Brook Gorge Oxford Albany Twp https://www.mainememory.net/artifact/14676 Allagash River Allagash Falls Aroostook T15 R11 https://www.worldwaterfalldatabase.com/waterfall/Allagash-Falls-20408 Allagash Stream Little Allagash Falls Aroostook Eagle Lake Twp http://bangordailynews.com/2012/04/04/outdoors/shorter-allagash-adventures-worthwhile Austin Stream Austin Falls Somerset Moscow Twp http://www.newenglandwaterfalls.com/me-austinstreamfalls.html Bagaduce River Bagaduce Reversing Falls Hancock Brooksville https://www.worldwaterfalldatabase.com/waterfall/Bagaduce-Falls-20606 Mother Walker Falls Gorge Grafton Screw Auger Falls Gorge Grafton Bear River Moose Cave Gorge Oxford Grafton http://www.newenglandwaterfalls.com/me-screwaugerfalls-grafton.html Big Wilson Stream Big Wilson Falls Piscataquis Elliotsville Twp http://www.newenglandwaterfalls.com/me-bigwilsonfalls.html Big Wilson Stream Early Landing Falls Piscataquis Willimantic https://tinyurl.com/y7rlnap6 Big Wilson Stream Tobey Falls Piscataquis Willimantic http://www.newenglandwaterfalls.com/me-tobeyfalls.html Piscataquis River Black Stream Black Stream Esker Piscataquis to Branns Mill Pond very hard to discerne best guess location Carrabasset River North Anson Gorge Somerset Anson https://www.mindat.org/loc-239310.html Cascade Stream
  • Log Drives and Sporting Camps - Chapter 08: Fisk’S Hotel at Nicatou up the West Branch to Ripogenous Lake William W

    Log Drives and Sporting Camps - Chapter 08: Fisk’S Hotel at Nicatou up the West Branch to Ripogenous Lake William W

    The University of Maine DigitalCommons@UMaine Maine History Documents Special Collections 1-2018 Within Katahdin’s Realm: Log Drives and Sporting Camps - Chapter 08: Fisk’s Hotel at Nicatou Up the West Branch to Ripogenous Lake William W. Geller Follow this and additional works at: https://digitalcommons.library.umaine.edu/mainehistory Part of the History Commons Repository Citation Geller, William W., "Within Katahdin’s Realm: Log Drives and Sporting Camps - Chapter 08: Fisk’s Hotel at Nicatou Up the West Branch to Ripogenous Lake" (2018). Maine History Documents. 135. https://digitalcommons.library.umaine.edu/mainehistory/135 This Book Chapter is brought to you for free and open access by DigitalCommons@UMaine. It has been accepted for inclusion in Maine History Documents by an authorized administrator of DigitalCommons@UMaine. For more information, please contact [email protected]. 1 Within Katahdin’s Realm: Log Drives and Sporting Camps Part 2 Sporting Camps Introduction The Beginning of the Sporting Camp Era Chapter 8 Fisk’s Hotel at Nicatou up the West Branch to Ripogenus Lake Pre-1894: Camps and People Post-1894: Nicatou to North Twin Dam Post-1894: Norcross Community Post-1894: Camps on the Lower Chain Lakes On the River: Ambajejus Falls to Ripogenus Dam At Ambajejus Lake At Passamagamet Falls At Debsconeag Deadwater At First and Second Debsconeag Lakes At Hurd Pond At Daisey Pond At Debsconeag Falls At Pockwockamus Deadwater At Abol and Katahdin Streams At Foss and Knowlton Pond At Nesowadnehunk Stream At the Big Eddy At Ripogenus Lake Outlet January 2018 William (Bill) W.
  • Chronicle Spring 2017

    Chronicle Spring 2017

    2017 President’s Notes 485 Chewonki Neck Road Wiscasset, Maine 04578-4822 he famed naturalist Roger Tory Peterson popularized Tel: (207) 882-7323 nature study for millions of people with his first book, Fax: (207) 882-4074 Email: [email protected] A Field Guide to the Birds, which he wrote and illustrated Web: chewonki.org during his years as a staff member at Chewonki. Peterson Chewonki inspires artfully combined the scientific method with a reverence transformative growth, Tfor the natural world. Inspired by his work and that of scores of other teaches appreciation and science educators who have taught at Chewonki over the past 102 years, stewardship of the natural we try, day in and day out, to encourage children and young adults to world, and challenges people observe the world around them, ask good questions, and develop to build thriving, sustainable evidence-based conclusions. communities throughout Nature provides vivid lessons about the importance of getting your their lives. facts straight. A canoe pushed broadside against a rock will flip if the current is too strong. At Chewonki, we ask young people to study the situation, determine what needs to be done, and work with others to design and execute solutions. We encourage them to CONTENTS use judgment tempered by experience and information. They soon realize that ignoring evidence 2 News results in bad outcomes. 6 Susan Feibelman For most of my life, I assumed that scientific principles would play an increasingly more 9 Value of Studying History important role in education and decision-making affecting society as a whole.
  • THE RANGELEY LAKES, Me to Play a Joke on a Fellow Woods­ Moose Yards Last Winter, Two of Them I Via the POR TLAND & RUM FORD FALLS RY

    THE RANGELEY LAKES, Me to Play a Joke on a Fellow Woods­ Moose Yards Last Winter, Two of Them I Via the POR TLAND & RUM FORD FALLS RY

    VOL. XXVII. NO. 8. PHILLIPS, MAINE, FRIDAY, SEPTEMBER 30, 1904. PRICE 3 CTS SPORTSMEN’S SUPPLIES Fish and Game Oddities. Tilden And Thd Trout An an jdote about a dogfish aalhisuu- sucoessful interview with the President published in a recent number of Hamper's Weekly, leads a correspondent of that paper to recall another incideut in which the late Samuel J. Tiidea was the chief figure. Mr. Tilden and W. M Evarts were walking one day along the v METALLIC CARTRIDGES banks of the Ammonoosac, in the White Mountains, when they espied a Never misfire. A Winchester .44, a Remington .30 30, a Marlin fish a few feet from the shore. “ I think .38 55, a S.evens .22 or any gun you may use always does Superior l 11 have that big trout,” said Mr. Tild­ Take-Down Reheating Shotguns The notion that one must pay from fifty dollars upwards in order to get Shooting -vitti U. M. C. Car. ridges. We make ammunition for en. “ How do you expect to catch him a good shotgun has been pretty effectively dispelled since the advent of every gun in the world and always of the same quality— U. M. C. without a hook?’’ exclaimed his com­ the Winchester Repeating Shotgun. These guns are sold within reach quality. panion. “ Wait and sec,” was the reply of almost everybody’s purse. They are safe, strong, reliable and handy. and, removing his coat and vest, he The Union fletailic Cartridge Cq., W hen it comes to shooting qualities no gun made beats them.
  • Seventy-Fourth Legislature

    Seventy-Fourth Legislature

    MAINE STATE LEGISLATURE The following document is provided by the LAW AND LEGISLATIVE DIGITAL LIBRARY at the Maine State Law and Legislative Reference Library http://legislature.maine.gov/lawlib Reproduced from scanned originals with text recognition applied (searchable text may contain some errors and/or omissions) NEW DRAFT. SEVENTY-FOURTH LEGISLATURE HOUSE. No. 505 STATE OF MAINE. RESOLVE, in favor of building bridges on the road as travelled from the Northeast Carry on the West Branch of the Penob­ scot River to Chesuncook Lake. Resolved, That the sum of five hundred dollars be and is 2 hereby appropriated to be used in the construction of bridges 3 on the road as travelled from the Northeast Carry on the 4 West Branch of the Penobscot River to Chesuncook, all in 5 the County of Piscataquis. Said money to be expended 6 under the direction of the County Commissioners of the 7 County of Piscataquis. ST~\TEMEI\T OF FACTS. ~\t the Northeast Carry on Moosehead Lake there is a large hotel and there is a highway leading from said Northeast Carry across said carry some two miles to the West Branch of Penob­ scot River. On the east side of the West Branch of the Penob­ scot River the people have travelled for some fifty years clown to Chesnncook Lake. This road as travelled crosses Lobster Stream, which is the outlet of Lobster Lake. also crosses Moose Horn Stream and Pine Stream. These are three comparatively large streams of water. It also crosses some other streams and brooks. Lobster Stream is only some two miles in length.
  • Experience Maine's Katahdin Region

    Experience Maine's Katahdin Region

    Experience Maine’s Katahdin Region An easy ride up I-95 Guided moose and wildlife tours Whitewater rafting Camping, cabins, and luxury lodging Spectacular views Fine dining and light fare Fishing, hiking and relaxing www.neoc.com 1-800-766-7238 Katahdin Region... everything Whatever your passion for the ou PLUS the magnificent backdrop o View of Mt. Katahdin from Twin Pines on Millinocket Lake www.neoc.com 1-800-766-7238 outdoor adventurers want utdoors, you can have it all of Mt. Katahdin. Whitewater Rafting Family Float Trips Moose Tours Kayak Instruction Guided Fishing Hiking Snowmobiling Cross Country Skiing Weddings Family Reunions Corporate Retreats and much more... www.neoc.com 1-800-766-7238 Raft Maine’s Scenic Rivers From a mellow Class I to a challenging Class V, it's easy to plan a family rafting trip or whitewater rafting vacation for groups, couples, and individuals seeking a broad range of experiences. www.neoc.com 1-800-766-7238 MAINE’S SCENIC RIVERS Whatever your expectations, THE PENOBSCOT Lower river trips or anticipate more soft adventure/family trips. The Penobscot River: A pool-drop river with spectacular, complex Ages 6 and up. rapids dropping into calm pools of water which allow time to catch your breath before tackling the next rapid. The 90 foot walls of Full river for high adventure Ripogenus Gorge give way to breathtaking views of the mountains of trips including some advanced Baxter Park including Mt. Katahdin, Maine’s highest Class V rapids. mountain. Surfing spots and a natural water slide Age 15 and up.
  • ALLAGASH MAINE BUREAU of PARKS and LANDS WILDERNESS the Northward Natural Flow of Allagash Waters from Telos Lake to the St

    ALLAGASH MAINE BUREAU of PARKS and LANDS WILDERNESS the Northward Natural Flow of Allagash Waters from Telos Lake to the St

    ALLAGASH AND LANDS MAINE BUREAU OF PARKS WILDERNESS The northward natural flow of Allagash waters from Telos Lake to the St. John River presented a challenge to Bangor landowners and inves- WATERWAY tors who wanted to float logs from land around Chamberlain and Telos By Matthew LaRoche lakes southward to mills along the Penobscot River. So, they reversed the flow by building two dams in 1841. magnificent 92-mile-long ribbon of interconnected lakes, CHURCHILL DAM raised the water ponds, rivers, and streams flowing through the heart of MAHOOSUC GUIDE SERVICE level and Telos Dam controlled the Maine’s vast northern forest, the Allagash Wilderness water release and logs down Webster Waterway (AWW) features unbroken shoreline on the Stream and eventually to Bangor. headwater lakes and free-flowing river along the lower Chamberlain Dam was later modified waterway. The AWW’s rich culture includes use by to include a lock system so that logs Indigenous people for millennia and a colorful logging history. cut near Eagle Lake could be floated to the Bangor lumber market. In 1966, the Maine Legislature established the AWW to preserve, The AWW provides visitors with a true wilderness experience, with limited protect, and enhance this unique area’s wilderness character. vehicle access and restrictions on motorized watercraft. Some 100 primitive Four years later, the AWW garnered designation as a wild river campsites dot the shorelines, and anglers from all over New England come to LAROCHE MATT THE TRAMWAY HISTORIC in the National Wild and Scenic Rivers System (NWSR). This the waterway in the spring and fall to fish for native brook trout, whitefish, and DISTRICT, which is listed on the year marks 50 years of federal protection under the NWSR Act.
  • North Maine Woods2013 $3

    North Maine Woods2013 $3

    experience the tradition North Maine Woods2013 $3 On behalf welcomeof the many families, private corporations, conservation organizations and managers of state owned land, we welcome you to this special region of Maine. We’re proud of the history of this remote region and our ability to keep this area open for public enjoyment. In addition to providing remote recreational opportunities, this region is also the “wood basket” that supports our natural resource based economy of Maine. This booklet is designed to help you have a safe and enjoyable trip to the area, plus provide you with important information about forest resource management and recreational use. P10 Katahdin Ironworks Jo-Mary Forest Information P14 New plan for the Allagash Wilderness Waterway P18 Moose: Icon of P35 Northern Region P39 Sharing the roads the North Woods Fisheries Update with logging trucks 2013 Visitor Fees NMW staff by photo RESIDENT NON-RESIDENT Under 15 .............................................................. Free Day Use & Camping Age 70 and Over ............................................... Free Day Use Per Person Per Day ...................................................$7 ................ $12 Camping Per Night ....................................................$10 ............. $12 Annual Day Use Registration ...............................$75 ............. N/A Annual Unlimited Camping ..................................$175 .......... N/A Checkpoint Hours of Operation Camping Only Annual Pass ...................................$100 .......... $100 Visitors traveling by vehicle will pass through one of the fol- lowing checkpoints. Please refer to the map in the center of Special Reduced Seasonal Rates this publication for locations. Summer season is from May 1 to September 30. Fall season is from August 20 to November 30. Either summer or fall passes NMW Checkpoints are valid between August 20 and September 30. Allagash 5am-9pm daily Caribou 6am-9pm daily Seasonal Day Use Pass ............................................$50 ............
  • AMERICAN INDIAN TRIBAL CENSUS TRACT OUTLINE MAP (CENSUS 2000) 68.612442W Loon Lake

    AMERICAN INDIAN TRIBAL CENSUS TRACT OUTLINE MAP (CENSUS 2000) 68.612442W Loon Lake

    46.141224N 46.141224N 69.745939W AMERICAN INDIAN TRIBAL CENSUS TRACT OUTLINE MAP (CENSUS 2000) 68.612442W Loon Lake Telos Lake Hay Lake Black LEGEND Pond SYMBOL NAME STYLE INTERNATIONAL Cuxabexis Lake Jerry Pond AIR (FEDERAL) Trust Land Umbazooksus Stream OTSA / TDSA AMERICAN INDIAN TRIBAL SUBDIVISION Moose AIR (State) Brandy Pond Pond SDAISA Place within Subject Entity Incorporated Place / CDP W Branch Penobscot River Nesowadnehunk Place outside of Subject Entity Lake Duck Pond Incorporated Place / CDP Pine Stream Tribal Census Tract 1 ABBREVIATION REFERENCE: AIR = American Indian Reservation; Trust Land = Off−Reservation Trust Land; OTSA = Oklahoma Tribal; Statistical Area; TDSA = Tribal Designated Statistical Area; SDAISA = State Designated American Indian Statistical Area; CDP = Census Designated Place Lunksoos Lake Cassidy Deadwater PISCATAQUIS 021 PENOBSCOT 019 Mud Pond Quaker Brook Military Out Area Harrington Lake Inset Seboeis River 1 This map shows tribal census tract boundaries and numbers. A tribal census tract is a type of census tract defined within a federally Pine Stream Flowage Katahdin Lake recognized American Indian reservation or off−reservation trust land for the purpose of providing data based on an American Indiani hierarchy rather than by state and county. West Branch Penobscot River Chesuncook Lake Russell Stream PISCATAQUIS 021 West Branch Penobscot River E Branch Penobscot River Bald Mt Twp W assataquoik Stream SOMERSET 025 Little Lobster Lake Ripogenus Lake W Branch Penobscot River Lobster Stream Caribou Lake
  • Easements and Conservation Policy in the North Maine Woods David J

    Easements and Conservation Policy in the North Maine Woods David J

    Maine Policy Review Volume 10 | Issue 1 2001 Easements and Conservation Policy in the North Maine Woods David J. Lewis Follow this and additional works at: https://digitalcommons.library.umaine.edu/mpr Part of the Environmental Policy Commons, Land Use Law Commons, and the Natural Resources Management and Policy Commons Recommended Citation Lewis, David J. "Easements and Conservation Policy in the North Maine Woods." Maine Policy Review 10.1 (2001) : 24 -36, https://digitalcommons.library.umaine.edu/mpr/vol10/iss1/5. This Article is brought to you for free and open access by DigitalCommons@UMaine. EASEMENTS AND CONSERVATION Easements and Conservation Recently Maine has embarked on a new policy direction in its use of conservation easements to protect large tracts of Policy in commercial timberland. In this article, David Lewis argues the North that the effectiveness of using easements as a long-term con- servation policy depends on many factors that may not be Maine Woods fully considered in the decisionmaking process currently By David J. Lewis used in choosing easements for landscape-scale conserva- tion. Lewis indicates that the root of the problem lies in the fact that the state lacks a comprehensive state policy describ- ing the conservation goals desired in the north woods. Before progressing further, Lewis suggests that the ultimate goals of conservation need to be understood clearly. Is con- servation addressing development? Recreation needs? Biodiversity protection? Forest fragmentation? Moreover, what are the costs and benefits associated with the state’s various conservation options? ᳚ 24 · MAINE POLICY REVIEW · Winter 2001 View current & previous issues of MPR at: www.umaine.edu/mcsc/mpr.htm EASEMENTS AND CONSERVATION Of primary INTRODUCTION money.
  • RESOURCE PROTECTION PLAN and RECREATION MANAGEMENT PLAN for the LOWER WEST BRANCH of the PENOBSCOT RIVER Effective De

    RESOURCE PROTECTION PLAN and RECREATION MANAGEMENT PLAN for the LOWER WEST BRANCH of the PENOBSCOT RIVER Effective De

    RESOURCE PROTECTION PLAN AND RECREATION MANAGEMENT PLAN FOR THE LOWER WEST BRANCH OF THE PENOBSCOT RIVER Ripogenus Gorge below McKay Station Effective December 26, 2002 RESOURCE PROTECTION PLAN AND RECREATION MANAGEMENT PLAN FOR THE LOWER WEST BRANCH OF THE PENOBSCOT RIVER Little Eddy on the Lower West Branch of the Penobscot Originally adopted in 1981; 2002 renewal submitted by Great Northern Paper Company, Great Lakes Hydro America, LLC, Baxter State Park Authority, Chewonki Foundation, and The Nature Conservancy; Adopted December 11, 2002 by the Maine Land Use Regulation Commission Effective December 26, 2002 All photos courtesy of Susan Burns, Land Use Regulation Commission, Maine Department of Conservation Lower West Branch Penobscot Plan December 26, 2002 PREFACE The Penobscot waterway, including portions of the East and West Branches of the Penobscot River and associated lakes, has long been identified as having exceptional recreational value. In the 1970’s, various management schemes were considered to maintain the special character of these areas while allowing continued commercial forestry activities. Federal and State studies undertaken in the late 1970's concluded that the Penobscot was worthy of special protection. In January 1979, the staff of the Land Use Regulation Commission proposed special recreation protection zoning for the corridors of the East and West Branches. Following an extended public hearing on those proposals, Great Northern Paper Company requested that the Commission defer action on the staff proposals. The Commission agreed to give Great Northern the opportunity to voluntarily develop a resource protection plan for the area. The Land Use Regulation Commission's Land Use Districts and Standards provide for a unique alternative to the Commission's customary zones, whereby landowners may propose a resource protection plan for areas such as the East and West Branches of the Penobscot River.