Crater Lake Reflections Visitor Guide Summer/Fall 2020
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News Release
United States Department of Agriculture Umpqua National Forest Burned Area Emergency Response Summary – Thielsen Fire October 22, 2020 The Thielsen Fire was detected on September 8, 2020 at approximately 8:30 a.m. after lightning passed through the area. The fire was on the Diamond Ranger District of the Umpqua National Forest, approximately 5 miles north of Crater Lake National Park. It burned within one mile of the Diamond Lake Resort, along both sides of Oregon Highway 138, and a small portion of the Mount Thielsen Wilderness. The fire (as of 10/6/2020) encompassed 9,951 acres primarily in a mixed conifer forest. The fire burned a mosaic pattern through most of the area, and the majority burned with low and moderate severity. The Forest Service assembled a Burned Area Emergency Response (BAER) team on September 26, 2020. This team of experts in soils, geology, hydrology, engineering, botany, recreation, archaeology, wildlife, fisheries, and GIS, began assessing the post-fire effects to critical values on Forest Service lands. BAER critical values include Life and Safety, Natural Resource, Cultural Resources and Property. The team developed a Soil Burn Severity (SBS) map to document the degree to which soil properties had changed within the burned area. Fire damaged soils have low strength, high root mortality, and increased rates of water runoff and erosion. Using the SBS map, BAER team members ran models to estimate changes in soil erosion, stream flows (hydrology) and debris flow (geology) potential. The models compared pre-fire conditions to predicted post- fire conditions to determine relative changes, which are then used to determine the relative risk to different critical values and recommendations to address those things determined to be an emergency. -
Primitive Magmas at Five Cascade Volcanic Fields 413
397 The Canadian M ine ralo g i st Vol. 35, pp. 397423 (1997) PRIMITIVEMAGMAS AT FIVECASCADE VOLCANIC FIELDS: MELTSFROM HOT, HETEROGENEOUS SUB.ARC MANTLE CHARLES R. BACONI, PEGGY E. BRUGGMAN, ROBERT L. CHRISTIANSEN, MICHAEL A. CLYNNE" JULIE M. DONNELLY-NOLAN ANDWES HILDRETH U.S.Geological Survey, 345 Mitdl.efield Road" Mmlo Parh Califurnia94025-3591,U.SA. ABSTRACT Major and trace elementconcenftations, including REE by isotopedilution, and Sr, Nd, Pb, and O isotoperatios have been determinedfor 38 mafic lavasfrom the Mount Adams,Crater Lake, Mount ShastaMedicine Lake, and Lassenvolcanic flelds, in the Cascadearc, northwestempart of the United States.Many of the sampleshave a high Mg# tl@Mg/(Mg + FeD > 601and Ni content(>140 ppm) suchthat we considerthem to be primitive. We rccognlzerhree end-member p:,jmillrve magma groups in the Cascades,characterized mainly by their trace-elementand alkali-metal abundances:(1) High-alumina olivine tholeiite (HAOT) hastrace element abundaaces similarto N-MORB, exceptfor slightly elevatedLllE, andhas Eu/Eu* > 1. (2) Arc basalt andbasaltic andesite have notably higher L/lE contents,generally have higher SiO2contents, are more oxidized andhave higher Cr for a given Ni abundancethan HAOT. Theselavas show relative depletioninl/F.i4 havelowerl/ftEE andhigherl,ftEEthan HAOT, andhave smallerEulEu* (0.94-1.06).(3) Alkali basaltfrom the Simcoevolcanic field eastof Mount Adamsreprcsents the third end-membr, which contributesan intraplate geochemicalsigpature to magna compositions.Notable geochemical featuresamong -
Oregon Geography
Oregon Geography 4th Grade Social Studies Medford School District 549c Created by: Anna Meunier and Sarah Flora Oregon Geography 4th Grade Social Studies Medford School District 549c Table of Contents Oregon Geography Unit Syllabus ........................................................................ 1 Oregon Geography Unit Objectives ..................................................................... 2 Oregon Geography Unit Lesson Plans.................................................................. 3 Print Shop Order ................................................................................................. 4 Oregon Geography Unit Lessons ......................................................................... 6 Oregon Geography Daily Lessons ...................................................................... 19 Lesson #1 ........................................................................................................................................ Lessons #2 & #3 .............................................................................................................................. Lesson #4 ........................................................................................................................................ Lesson #5 ........................................................................................................................................ Lesson #6 ....................................................................................................................................... -
Klamath Marsh National Wildlife Refuge
U.S. Fish & Wildlife Service Final Comprehensive Conservation Plan and Environmental Assessment Klamath Marsh National Wildlife Refuge Klamath Basin National Wildlife Refuge Complex 4009 Hill Road Tulelake, CA 96134 530/667-2231 Fax 530/667-8337 Klamath Marsh http://www.fws.gov/klamathbasinrefuges Oregon Telecommunications Relay Service National Wildlife Refuge Voice: 1 800/735-1232 TTY: 1 800/735-2900 Final Comprehensive Conservation Plan U.S. Fish & Willdife Service 1 800/344-WILD and Environmental Assessment http://www.fws.gov June 2010 June 2010 Klamath CCP Cover 2.indd 1 7/9/2010 4:11:22 PM Disclaimer CCPs provide long term guidance for management decisions and set forth goals, objectives, and strategies needed to accomplish refuge purposes and identify the Service’s best estimate of future needs. These plans detail program planning levels that are sometimes substantially above current budget allocations and, as such, are primarily for Service strategic planning and program prioritization purposes. The plans do not constitute a commitment for staffing increases, operational and maintenance increases, or funding for future land acquisition. Klamath CCP Cover 2.indd 2 7/9/2010 4:11:22 PM Klamath Marsh National Wildlife Refuge Final Comprehensive Conservation Plan and Environmental Assessment Prepared By: U.S. Fish and Wildlife Service Pacific Southwest Region Refuge Planning 2800 Cottage Way, W-1832 Sacramento, CA 95825 and Klamath Marsh National Wildlife Refuge Klamath Basin National Wildlife Refuge Complex 4009 Hill Road Tulelake, CA 96134 June 2010 Contents Chapter 1. Introduction, Purpose and Need, and Planning Background.. 1 1.1 Introduction . 1 1.2 Need for this CCP . -
Foundation Document Overview, Crater Lake National Park, Oregon
NATIONAL PARK SERVICE • U.S. DEPARTMENT OF THE INTERIOR Foundation Document Overview Crater Lake National Park Oregon Contact Information For more information about the Crater Lake National Park Foundation Document, contact: [email protected] or (541) 594-3000 or write to: Superintendent, Crater Lake National Park, P.O. Box 7, Crater Lake, Oregon 97604 Park Description Crater Lake National Park—established in 1902—is in southwest Oregon in the south-central portion of the Cascade Range. The park ranges in elevation from about 3,800 feet to just over 8,900 feet at Mount Scott. Near the center of the park is one of its most spectacular features, Crater Lake. At 1,943 feet deep, it is the deepest lake in the United States. The lake is in a caldera, which was formed when the top of 12,000-foot Mount Mazama erupted and collapsed about 7,700 years ago. Over the centuries, the caldera has collected water from rain and snow to form the lake. The lake is about 5 miles in diameter and is surrounded by the jagged, steep-walled cliffs of the caldera left by the climatic eruption. The cliffs surrounding the lake rise from 500 to 2,000 feet above the lake’s surface. From the rimmed summit, the land slopes gradually downward in all directions. There are no inlets or outlets to the lake, and evaporation and seepage prevent the lake from becoming deeper. Crater Lake has no influent or effluent streams to provide continuing supplies of oxygen, nutrients, and fresh water and is considered a youthful lake with a high level of purity. -
USGS Scientific Investigations Map 2832, Pamphlet
Geologic Map of Mount Mazama and Crater Lake Caldera, Oregon By Charles R. Bacon Pamphlet to accompany Scientific Investigations Map 2832 View from the south-southwest rim of Crater Lake caldera showing the caldera wall from Hillman Peak on the west to Cleetwood Cove on the north. Crater Lake fills half of the 8- by 10-km-diameter caldera formed during the climactic eruption of Mount Mazama volcano approximately 7,700 years ago. Volcanic rocks exposed in the caldera walls and on the flanks record over 400,000 years of eruptive history. The exposed cinder cone and andesite lava flows on Wizard Island represent only 2 percent of the total volume of postcaldera volcanic rock that is largely covered by Crater Lake. Beyond Wizard Island, the great cliff of Llao Rock, rhyodacite lava emplaced 100–200 years before the caldera-forming eruption, dominates the northwest caldera wall where andesite lava flows at the lakeshore are approximately 150,000 years old. 2008 U.S. Department of the Interior U.S. Geological Survey This page intentionally left blank. CONTENTS Introduction . 1 Physiography and access . 1 Methods . 1 Geologic setting . 4 Eruptive history . 5 Regional volcanism . 6 Pre-Mazama silicic rocks . 6 Mount Mazama . 7 Preclimactic rhyodacites . 9 The climactic eruption . 10 Postcaldera volcanism . .11 Submerged caldera walls and floor . .11 Glaciation . .11 Geothermal phenomena . 12 Hazards . 13 Volcanic hazards . 13 Earthquake hazards . 14 Acknowledgments . 14 Description of map units . 14 Sedimentary deposits . 15 Volcanic rocks . 15 Regional volcanism, northwest . 15 Regional volcanism, southwest . 17 Mount Mazama . 20 Regional volcanism, east . 38 References cited . -
Oregon – Crater Lake National Park
Oregon – Crater Lake National Park Trip Summary This adventure in and around Crater Lake highlights the beauty of Oregon in more ways than one! From hiking to the tops of peaks with 360 degree views in all directions to pedaling down pleasant bike paths without a care in the world, this trip is sure to challenge yet relax you at the same time. Hike forested trails on the lookout for colorful flowers like Macloskey’s Violet, broadleaf lupine, and Lewis’ monkeyflower. Stare into the bright blue depths of the deepest lake in the United States, formed by the collapse of an ancient volcano. Walk the streets of the beautiful town of Ashland, nestled at the base of the convergence of Siskiyou and Cascade Mountain Ranges. Take on the thrill of class III and IV whitewater on the famous Rogue River. Take in the beauty of Crater Lake National Park with Austin Adventures! Itinerary Day 1: Medford / Crater Lake National Park Shuttle from Medford to Crater Lake National Park (1hr 40min) • After a short welcome meeting, embark on your first short hike to Natural Bridge • Then, enjoy a delicious guide-prepared picnic lunch at Cloudcap Overlook • This afternoon, a strenuous hike takes you up and away from the crowds • 8,929 foot Mount Scott summit is the highest point in Crater Lake National Park • The views from the summit are the most far reaching in the park, encompassing not only the entire lake but such surrounding peaks as Mount Thielson, Mount Shasta, and Mount McLoughlin • For the next two evenings we overnight rooms at Crater Lake Lodge, perched -
Shasta Rain Rock” by Gail L
F R JEFFERSON E E BACKROADS Come and be a Montague part of this amazing display Balloon of hot air balloons, held Fair each year in September in Sept. 24th - 26th Montague, California. Read a fun story about one of the past hot air balloon fairs on Page 6 and also see the advertisement for this year’s event on Page 13. Photo of magical hot air balloons by M. Fain What’s Inside . What it is . History of Yreka by Claudia A. East . .. Page 2 Welcome! We are happy to report that State of Jefferson Tourism Committee . Page 3 The Mythical State of Jefferson is most Discovering The State of Jefferson by Gail L. Jenner . Page 4 definitely alive and well. We bring Local Shoppe of the Month: Wildwood Crossing, Etna. Page 5 you stories, up-coming events, history Montague Balloon Fair . Page 6 and spotlight articles on the Mom & Four Volcanoes of The State of Jefferson . Page 7 Pop Shoppes, businesses, artists, musicians, inns, eateries, recreational Maps of The State of Jefferson & Siskiyou County. Page 8 opportunities and community What IS The State of Jefferson, You Ask?. Page 9 organizations proudly operating here Backpacking in Jefferson by Richard Platz . Pages 10-11 in the Heart of The State of Jefferson: Where to Go - What to See - When to Do It . Page 12 Rugged & Beautiful Siskiyou County. Farmers Markets in Siskiyou County . Page 13 Locally Owned & Operated Backroads Adventures by Ralph Fain . Pages 14-15 Ad Rates - Advertisers & Other Information . Page 16 SEPTEMBER 2010 Hit the Backroads! www.jeffersonbackroads.com 5417 93078 NL.indd 1 9/2/10 12:55 PM HISTORY OF YREKA: “Yreka’s Welcome Arch” by Claudia A. -
50 HIKES CHALLENGE Join the 50 Hikes Challenge from May 1 Through October 31, 2014
Oregon Wild presents: 50 HIKES CHALLENGE Join the 50 Hikes Challenge from May 1 through October 31, 2014. Hike in as many of the following designated or proposed Wilderness areas as you can and track your progress below. Join us on a guided hike or set out on your own. Oregon Wild members will receive prizes for completing 10 or more Wilderness adventures. Write the date of your completed adventure under each area below. Send us your log and trail photos (or Instagram name) when finished. � Badger Creek Wilderness � Lower White River Wilderness � Roaring River Wilderness � Black Canyon Wilderness � Mark O. Hatfield Wilderness � Rock Creek Wilderness � Boulder Creek Wilderness � Menagerie Wilderness � Rogue-Umpqua Divide � Bridge Creek Wilderness � Middle Santiam Wilderness Wilderness � Bull of the Woods Wilderness � Mill Creek Wilderness � Salmon-Huckleberry Wilderness � Clackamas Wilderness � Monument Rock Wilderness � Sky Lakes Wilderness � Copper Salmon Wilderness � Mount Hood Wilderness � Soda Mountain Wilderness � Crater Lake Proposed � Mount Jefferson Wilderness � Spring Basin Wilderness � Cummins Creek Wilderness � Mount Thielsen Wilderness � Steens Mountain Wilderness � Diamond Peak Wilderness � Mount Washington Wilderness � Strawberry Mountain Wilderness � Devil’s Staircase Proposed � Mountain Lakes Wilderness � Table Rock Wilderness � Drift Creek Wilderness � North Fork John Day Wilderness � Three Sisters Wilderness � Eagle Cap Wilderness � North Fork Umatilla Wilderness � Waldo Lake Wilderness � Gearhart Mountain Wilderness � Opal Creek Wilderness � Wenaha-Tucannon Wilderness � Grassy Knob Wilderness � Oregon Badlands Wilderness � Wild Rogue Wilderness � Hells Canyon Wilderness � Owyhee Canyonlands Proposed � Wild Rogue Proposed Wilderness � Kalmiopsis Wilderness � Red Buttes Wilderness � Whychus-Deschutes Proposed Learn more and register at www.oregonwild.org/50hikes. -
Welcome to Silver Falls Silver to Welcome N
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FIELD TRIP PLANNING GUIDE Fall 2015
FIELD TRIP PLANNING GUIDE Fall 2015 Silver Falls State Park is an educator's playground. Temperate rainforest ecology, wildlife and habitats, waterfall formations, logging and Depression-era history. …there is a little something for everyone to learn about. If you're planning a field trip to Silver Falls, you'll want to start here. Silver Falls State Park Item Page Scheduling a Field Trip 2 Planning Your Field Trip 4 Groups Larger Than 30 5 Self-Guided Activities 7 Groups 30 or Less 8 Frequently Asked Questions 10 Some Things to Remember 11 Park Resources 13 Park Maps 14 2 3 Scheduling a Field Trip Please reserve your trip at least one month in advance—for Contact spring and fall trips, call at least three months in advance. Matt Palmquist Trips are typically scheduled for Wednesdays, Friends of Silver Falls, Park Interpreter Thursdays and Fridays. A Silver Falls’ Staff Member would like to help you plan Phone your visit, but may not be available on the day of your field (503) 874-0201 trip. For when a guide is not available, we have resources for you to enjoy and use to plan your trip. Self-guided ac- tivities, trail maps, and informational brochures can provide you with great alternatives. Email [email protected] Your group may also consider bringing in outside presenters such as other teachers, experts, and organizations to lead sessions. We will accommodate as much as we are able. Field Trip Programming Options (*Schedules are flexible, please contact for changes!) Guided Group Hike 3 or 4 Program Rotations into Canyon (guided tours and/or hands -on programs) See 8 of 10 Waterfalls! in South Falls Day-Use Area 4 Example Schedule with 3 Program Rotations 5 Guided Hiking Tours Waterfall Tour Rainforest Tour Hike Behind South Falls Hike Next to Giants (trees, that is) See how the shape of Silver Fall has Beyond the falls, the temperate rainforest changed over time, and hear some of the has many stories to tell – of people, many interesting stories “written” here. -
Silver Falls State Park
ORECiON CiEOLOCiY formerly THE ORE BIN published by the Oregon Department of Geology and Minerallndustlfes Volume 41 , Number 1 January 1979 OREGON CiIOLOCiY To our readers: Volume 41, Number 1 J ~ nu t!lry 1979 This issue of OREGON GEOLOGY i ntroduces Publhhed IIIIOnthly by the State of Oregon Department of Geology and Hineral Industries (Volumes 1 through the fourth format for the Depart ment of Geol 40 were e ntitled The Or e 1111'1) . ogy and Mineral Industries' monthly publica tion. Changes began 40 years ago, when THE GOVERNING BOARD ORE BIN replaced the PRSSS· BULLETIN. Then, Leesnne C. MacCO!1, Chairperson, Po rtland in 1962, the mimeographed ORE BIN became the Robert W. Ooty • . talent popular printed version . John L. Schwabe Porthnd The magazine's readership has grown . STATE GEOLOGIST Well mo re than one-third of the copies mail ed Donald A. Hull in the U.S .A. go outside Oregon . In addition. DEPUTY STATE GEOLOGIST some of t oday's subscr iber s live in Canada. John D. Beaulieu England. France. Germany. Japan. New' Zealand, and South Africa. Main Office: 1069 Sute Office Buildi ng. Portllnd 97201, phone (503) 229-5580 OREGON GEOLOGY will be found, as has been THE ORE BIN, in school libraries just about anywhere -- on the desks in executive Baker Field Office: 20)3 First Street, Baker suites. on shelves in private consultants ' 97814 , phone (503) 523- 3133 offices. and on coffee tabl es in hundreds of Howard C. Brook., Resident Geologist homes. Grants Pas s Field Office: 52 1 N.E.