Isle Royale National Park
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The Portage Lake Volcanics (Middle Keweenawan) on Isle Roy Ale
THE PORTAGE LAKE VOLCANICS (MIDDLE KEWEENAWAN) ON ISLE ROYALE, MICHIGAN Prepared in cooperation with the National Park Service GEOLOGICAL SURVEY PROFESSIONAL PAPER 754-C The Portage Lake Volcanics (Middle Keweenawan) on Isle Royale, Michigan By N. KING HUBER GEOLOGY OF ISLE ROYALE NATIONAL PARK, MICHIGAN GEOLOGICAL SURVEY PROFESSIONAL PAPER 754-C Prepared in cooperation with the National Park Service UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1973 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 73-600161 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402- Price $1.05 (paper cover) Stock Number 2401-02399 CONTENTS Page Page Abstract -------------------------------------------------------------------------·-------------· C1 The Portage Lake Volcanics on Isle Royale--Continued Introduction ·····-·······-···---------------···················-··--········-··············· 1 Volcanic rocks-Continued Historical background ·················--····--············--···--······-····- 1 Stratigraphic units-Continued Scope of study ·····-·-·--··········--·-·············-····-·····················-···· 1 Ophite flows ---------------------------------------------------------- C18 Acknowledgments ··········--·····················--··-····--·········-···-·--· 2 Greenstone Flow-------------------------------------·--- 19 The Portage Lake Volcanics on the Keweenaw Peninsula__ 3 The Portage Lake Volcanics -
The Greenstone 2018
National Park Service Your Guide to Isle Royale National Park U.S. Department of the Interior www.nps.gov/isro Wonderland Welcome to Isle Royale National Park I thought it was a special island. A magic island... Each trip to Isle Royale is distinctive, defined in part by the external I thought it was my own magic island. landscape: the weather, seasons, and sights along the way are integral Young Anna Bowen, daughter of the assistant parts of the experience. But each trip is also intensely personal: a rush of lighthouse keeper, spent her summers exploring adrenaline as a magnificent bull moose appears from the brush, a thrill the forests and shorelines of Passage Island. Her of wonder as the aurora pulses in the dark velvet sky, a calm that settles passion for exploration caused her mother endless deep inside us… a sense that we belong to this place. apprehension: a wild island was no place for children. As a national park, this place also belongs to us. Protecting the wonders Anna did not agree. Neither did her father, who found within its boundaries is an ongoing challenge, and your voice encouraged her to “stop and look” at all the wonders continues to be important in park decision-making. around her. The Cultural Resources On a trip to Passage Island we walk in Anna’s Management Plan and the footsteps and enter her “enchanted forest.” We Wilderness Stewardship Plan are encounter impenetrable thickets of Devil’s Club, currently in progress. Drafts of aptly named for its armor of wicked spines. -
Herbivory, Climate Change and the Future Landscape of Isle Royale
University of Michigan Herbivory, Climate Change and the Future Landscape of Isle Royale National Park: Developing an Herbivory Monitoring Program to Adaptively Manage the Park’s Terrestrial and Aquatic Ecosystems Project report for the partial fulfillment of an MS degree from the School for the Environment and Sustainability Client: National Park Serve, United States Department of the Interior Advisor: Inés Ibáñez Jordon Tourville, Margaret Lindman, Charlotte Weinstein, Robin Schultze, Mirko Noack 4-17-2018 Abstract Climate change is expected to play a major role in the restructuring of forests and other vegetation communities across the globe in the coming century. Forests in particular currently occupy almost half of the Earth’s terrestrial surface, with other types of natural plant communities contributing a large proportion of land cover. Given the importance of these ecosystems with respect to their biological functions (i.e., water provisioning, climate regulation, nutrient cycling, carbon sequestration, habitat provisioning, etc.), understanding how these plant communities will respond to the growing threat of climate change will allow us to anticipate and quantify significant impacts to long-term human and environmental well-being. Climate change and subsequent rising temperatures, in concert with biotic drivers such as herbivory, is thought to have already altered the composition of plant communities in Isle Royale National Park (ISRO). Understanding what continuing changes these communities may still undergo is a major goal for National Park Service (NPS) resource managers, as this information will allow for more targeted conservation strategies. In this report we present a vegetation and herbivory monitoring protocol (Part I) intended to assess the combined effects of herbivory and climate change on the terrestrial plant communities of Isle Royale National Park (ISRO). -
Isle Royale National Park MICHIGAN with More Than 200 Small Islands and Countless Minor Superior
Isle Royale National Park MICHIGAN With more than 200 small islands and countless minor Superior. Isle Royale is on the northwest rim of this basin. rocks surrounding it, Isle Royale is an archipelago. The Within the last million years, the continental glaciers of Isle Roy ale northeastern end of the main island consists of 5 chains of the Ice Age have reshaped the basin. In doing so, they islands and peninsulas forming 4 fjordlike harbors, the overrode Isle Royale, grinding smooth the surfaces of its NATIONAL PARK longest of which is Rock Harbor. An island chain on the rocks but leaving the numerous closed depressions now southwestern end of Isle Royale separates Grace Harbor occupied by its lakes. During the melting and retreat of the from Washington Harbor. Most of the harbors are navi glaciers, the waters of Lake Superior stood for long periods U.S. DEPARTMENT OF THE INTERIOR gable, for the water close to shore is deep. at higher levels. This was because, during these periods, Fred A. Seaton, Secretary Isle Royale, the main island, is the largest in Lake the Great Lakes flowed to the sea through outlets of different NATIONAL PARK SERVICE Superior. About 45 miles long and 9 miles across at its heights. Conrad L. Wirth, Director widest point, it has an area of about 210 square miles. The At one time Isle Royale was almost completely sub highest measured elevation on the island is Mount Desor, merged; its shoreline at that time is indicated by the wave- 794 feet above the level of the lake and 1,396 feet above cut rocks, now high up on the ridges. -
Isle Royale Protection Strategies
Isle Royale Protection Strategies Site Name: Hay Bay Site Number: 1 Inland Sensitivity Tile Number: Upper Peninsula of Michigan, Tile 5 Location: South side of the main island; North shore of Siskiwit Bay - Western half. T64N, R37W, Sections 13 and 24. T64N, R36W, Sections 18 and 19. Land Ownership: Public (National Park Service) Response Strategy: Diversion (depending upon wind direction and currents) Description: The shoreline of Hay Bay from head to mouth is characterized by fringing marshes, sheltered low vegetated banks, mixed sand and gravel beaches, and gravel beaches. Game fish (coaster brook trout breeding ground), waterfowl (common loon), raptors (eagles), and large mammals are known to inhabit and frequent Hay Bay. Hay Bay trends West Southwest to East Northeast from head to mouth. The Little Siskiwit River enters Hay Bay at the extreme western end. Access Points: Access is available by water only either with a shallower draft boat or float plane/rotor aircraft equipped with pontoons. Hay Bay is approximately 24 miles from Park Headquarters on Mott Island by boat. A boat dock is available for landing and staging of equipment (including the adjacent primitive camp sites) on the South Shore of Hay Bay approximately ½ mile from the head of the bay. Water depths within the bay vary from 17 feet at the mouth of the bay, to 11 feet within the middle of the bay, to 3 feet in the nearshore. Protection Strategy Requirements: Strategy would be to place one or two 200 to 300 foot lengths of boom anchored on shore and in approximately 11 or 12 feet of water to divert oil impacts to the Little Siskiwit River at the head of the bay. -
Greenstone 2019
National Park Service Your Guide to Isle Royale National Park U.S. Department of the Interior www.nps.gov/isro Storied Science On an early July morning in 1905, a team of six University of Michigan scientists and a “camp hand” disembarked at the abandoned Rock Harbor Lighthouse and began setting up the camp that would be their base of operations for the next month. Led by Dr. Charles Adams, the research team consisted of experts in everything from birds to mollusks to beetles. At the time, ecology was practically a brand-new science, and Adams, one of its founders and strongest proponents. His project and final report, An Ecological Survey of Isle Royale, became a model for how to collect and analyze field data. Among their many observations, expedition members noted unusually colored garter snakes, riotous life in shoreline pools, and arctic species of dragonflies. These and other features generated a surge of research in the coming decades. In 1929 and 1930, separate teams of botanists, zoologists, geologists, geographers, and archeologists crisscrossed the island. Park advocate Albert Stoll publicized the expeditions' stories in the Detroit News. His tantalizing headlines (Thirteen thrilling minutes in a storm cloud!) fueled public interest in this mysterious northern isle, paving the way for national park status. The park's scientific legacy continues. Each season, dozens of university researchers explore questions from diverse scientific fields, and National Park Service-led monitoring projects deepen understanding of park ecosystems. A hundred years have come and gone since Adams’ crew explored the archipelago’s shorelines and forests, its high ridges and “impenetrable swamps.” Today, the allure of the island remains, and research stories of Isle Royale continue to unfold. -
Delaware North Companies Jason Fatouros Deb Friedel Emily Jacobs Dan Jensen Alphy Johnson Kevin Kelly Vicki Mcmichael Tony Sisto Steve Ullmann Derek Zwickey
DELAWARE NORTH STUDENT COMPANIES MANUAL PARKS AND RESORTS RESOURCE MANAGEMENT TRAINING JUNE 2012 June 2012 Stephen A. Wolter Executive Director Christy McCormick Deputy Director Eppley Institute for Parks and Public Lands 501 N. Morton Street, Suite 101 Bloomington, IN 47404 812.855.3095 The following individuals contributed to the development of this manual: Delaware North Companies Jason Fatouros Deb Friedel Emily Jacobs Dan Jensen Alphy Johnson Kevin Kelly Vicki McMichael Tony Sisto Steve Ullmann Derek Zwickey Eppley Institute for Parks and Public Lands Matthew Berry Nona Capps Zach Carnagey Jeremy Hackerd Christy McCormick Kate McCormick Wei Wang Kim Watson Mike Watson Steve Wolter Katy Wright Indiana University Charles Chancellor, PhD James Farmer, PhD Chapter One: Course Introduction .................................................................................................... 1 DNC – Parks and Resorts Resource Management Training Agenda ........................................................... 3 Course Introduction .................................................................................................................................... 5 Chapter Two: Session Materials ........................................................................................................ 7 Course Introduction .................................................................................................................................... 9 Concessions and the NPS ......................................................................................................................... -
The Isle Royale Folkefiskerisamfunn: Familier Som Levde Av Fiske
THE ISLE ROYALE FOLKEFISKERISAMFUNN: FAMILIER SOM LEVDE AV FISKE An Ethnohistory of the Scandinavian Folk Fishermen of Isle Royale National Park Prepared for The National Park Service Midwest Regional Office and Isle Royale National Park By Rebecca S. Toupal Richard W. Stoffle M. Nieves Zedeño January 22, 2002 TABLE OF CONTENTS PREFACE...................................................................................................................... viii ACKNOWLEDGEMENTS........................................................................................... ix CHAPTER ONE: Study Overview............................................................................... 1 List of Participants ............................................................................................ 2 Schedule of Activities....................................................................................... 3 Structure of the Research.................................................................................. 3 Archival Review ............................................................................................... 3 Oral Histories.................................................................................................... 5 Context of the Report........................................................................................ 5 On-Site Visits.................................................................................................... 9 Analysis and Write-Up .................................................................................... -
USGS Bulletin 1309 the Geologic Story of Isle Royale National Park
Norman King Huber The geologic story of Isle Royale National Park United States Geological Survey Bulletin 1309 (1975) CONTENTS The island in history ------------------------------------------ 2 A look at the landscape -------------------------------------- 5 The building blocks-rocks and minerals ---------------------- 8 Volcanic rocks ---------------------------------------------- 8 Sedimentary rocks------------------------------------------ 13 Pyroclastic rocks -------------------------------------------- 14 The way the rocks are stacked up --------------------------- 14 A volcanic pile-the Portage Lake Volcanics ----------------- 14 Rock Harbor-Tobin Harbor area --------------------------- 17 Washington Harbor area------------------------------------ 20 An ancient alluvial fan-the Copper Harbor Conglomerate ---------------------------------------------- 21 Tilting and breaking the rocks ------------------------------- 29 Isle Royale-a small piece of the big puzzle ------------------ 34 What happened when? -------------------------------------- 35 Time as a geologic concept --------------------------------- 36 What was there before-the pre-Keweenawan -------------- 37 The rocks of Isle Royale-the Keweenawan ----------------- 38 The missing chapters --------------------------------------- 40 The glaciers take over -------------------------------------- 41 Glacial effects on the land ---------------------------------- 41 Glacial effects on lake levels -------------------------------- 47 Some minerals of special interest ---------------------------- -
Simple Bouguer Gravity Map of Minnesota and Northwestern Wisconsin
UNIVERSITY OF MINNESOTA GEOLOGICAL SURVEY SIMPLE BOUGUER GRAVITY MAP OF MINNESOTA AND NORTHWESTERN WISCONSIN Campbell Craddock, Harold M. Mooney, and Victoria Kolehmainen A Discussion To Accompany Miscellaneous Map Series Map M-70 SIMPLE BOUGUER GRAVITY MAP OF MINNESOTft, AND NORTHWESTERN WISCONSIN Campbell Craddock, Harold M. Mooney, and Victoria Kolehmainen Miscellaneous Geologic Map Series M-l 0 A Discussion To Accompany Miscellaneous Map Series Map M-70 UNIVERSITY OF MINNESOTA Minnesota Geological Survey 1969 UNIVERSITY OF MINNESOTA MINNESOTA GEOLOGICAL SURVEY P. K. Sims, Director Funds for this publication were provided by the State Legislature from the Natural Resources Account on the recommendation of the Minnesota Resources Commission. CONTENTS Page Introduction .................................................................... The University of Minnesota gravity program, 1961-1966. .. .. 3 Gravity base station network in Minnesota. .. 5 Geologic Interpretation. .. 5 Appendix A - Bouguer anomaly map of Isle Royale. .. 10 Appendix B - Gravity base stations. .. 10 References cited. .. 12 ILLUSTRATIONS Figure 1 - Simple Bouguer Anomaly Map of the Midcontinent Gravity High. .. 2 2 - Generalized Geologic Map of Minnesota. .. 6 3 - Simple Bouguer Anomaly Map of Isle Royale. .. 11 iii INTRODUCTION 1his map and report are the result of a geological and geophysical study of the Minnesota-Wisconsin segment of the Midcontinent Gravity High (fig. 1) begun in 1960 at the University of Minnesota. The geophysical program has included seismic -
Equine Trails Subcommittee (Ets)
EQUINE TRAILS SUBCOMMITTEE (ETS) Meeting Minutes Location: Virtual meeting Date: May 5, 2021 1:00 – 4:30 p.m. Welcome – Roll Call PRESENT FOR THE EQUINE TRAILS SUBCOMMITTEE: • Amy Scharmen-Burgdolf, Chairperson • Jenny Cook • Dug Jordan • Kristie Walls • Mary Van Dorp • Karen Bahrman PRESENT FOR THE DEPARTMENT OF NATURAL RESOURCES (DNR) STAFF • Kristen Bennett, Annalisa Centofanti, Scott Slavin, Ron Yesney, Scott Pratt, Dakota Hewlett, Jeff Kakuk, Paul Gaberdiel, Nikki Van Bloem, Jennifer Etienne, Paige Perry, Ron Yesney, Gary Jones, Dave Lemmiem, Elissa Buck, Jill Sell, Nicole Hunt Meeting minutes ACTION ITEMS Meeting is called to order at 1:04 p.m. Motion was made to approve March 3, 2021 draft meetings minutes. Kristie Walls and Jenny Cook approved, with all in favor. Motion was made to approve the May 5 agenda. Dug Jordan and Karen Bahrman approved, with all in favor. Jenny Cook asked to consider another time for public comments, allowing comment at the beginning of the meeting ETS Minutes May 5, 2021 BUSINESS ITEMS FOR DISCUSSION ETS COMMITTEE REPORTS Dug Jordan (see attached report) Nikki Van Bloem (DNR) commented in reference to a purchase of a putt-putt golf course, located next to the Oscoda Township Park, in Dug’s report saying she did not recall Paul Yauk (DNR) making this purchase. Dakota Hewlett (DNR) said Au Sable Township purchased this parcel and any question should be directed towards the township. Paige Perry (DNR) said she will check with Wildlife in reference to the status of a proposal for a new trail at Inspiration Point. Jenny Cook (see attached report) Kristie Walls asked Jenny to include her in the meeting with Michigan Department of Transportation (MDOT), saying this will be a good opportunity to talk about driver education and road safety/awareness. -
Michigan Trails Advisory Workgroup (Mtac)
MICHIGAN TRAILS ADVISORY WORKGROUP (MTAC) Meeting Minutes Location: Virtual meeting Date: April 8, 2021 6-8 p.m. Welcome – Roll Call PRESENT FOR THE MICHIGAN TRAILS ADVISORY COUNCIL: • Bob Wilson, Chairperson • Jason Jones • Michael Maves • Mark Losey • Mary Van Dorp (absent) • James Kelts • Jessi Adler • Jenny Cook (absent) • Kenneth Hopper • Richard Williamson (absent) • Donald Kauppi PRESENT FOR THE DEPARTMENT OF NATURAL RESOURCES (DEPARTMENT) STAFF • Paul Yauk, Jessica Holley, Annalisa Centofanti, Scott Slavin, Ron Yesney, Chris Knights, Michael Morrison, Kristen Bennett, Kristen Thrall (USFS), Danielle Zubek, Roger Storm, Ron Olson, Scott Pratt, Dakota Hewlett, Jeff Kakuk, Paul Gaberdiel, Gary Jones, Thomas Bissett, Thomas Seablom, Paige Perry, Ron Yesney, Kristin Phillips Bob Wilson started the meeting with an open statement. Bob welcomed four (4) new members to the council (Jason Jones, Michael Maves, Mark Losey, and Mary Van Dorp). An important role to fill this year will be to work with the Department of Natural Resources (DNR), along with Public Sector Consultants (PSC) to develop a master trail plan. The group has already held meetings, working towards objectives, goals, and action items, and are now working on refining those items. We are getting close to a point where MTAC will be formerly adopting a recommendation from the DNR. Bob expressed a “shout out” to all the groups working on this program. Also, a thank you to the DNR for working under the COVID-19 circumstances in the past year. Meeting minutes ACTION ITEMS Bob Wilson made a motion to approve Sept. 23, 2020 meeting minutes. Jim Kelts and Don Kauppi approved, with all in favor.