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Crater Lake Reflections Summer-Fall 2018
Crater Lake National Park National Park Service Crater Lake U.S. Department of the Interior Refections Visitor Guide Summer/Fall 2018 Park News 2 ... Camping, Lodging, Food Discovering Crater Lake 3 ... Ranger Programs f Water Restrictions in Effect Please help us conserve water during 12 Great Ways to Enjoy Your Stay 4 ... Hiking Trails your visit. In March, the state of 5 ... Driving Map Oregon declared a drought emergency The frst European-American to see Crater Lake was lucky to ... In the News: Bull Trout for our county. In 8 of the past 10 survive the experience. On June 12, 1853, gold prospector John 6 years, the park has received less snow Wesley Hillman was riding his mule up a long, sloping mountain. 7 ... Feature Article: Lake Level than normal. Last winter’s snow total He was lost, tired, and not paying attention to the terrain ahead. was 15 feet below average. While 8 ... Climate Chart Suddenly, his mule stopped. Hillman sat up and found himself you’re here, please take short showers, on the edge of a clif, gazing in astonishment at “the bluest and don’t run the tap, and reuse towels most beautiful body of water I had ever seen.” He added: “If and sheets if staying overnight in park Look Inside! I had been riding a blind mule, I frmly believe I would have lodging. Thanks for your help! ridden over the edge to death and destruction.” f Leave Your Drone at Home While mules—no matter how sharp their eyesight—are no longer Operating remote-controlled aircraft permitted to approach the rim of Crater Lake, there are many in the park is prohibited. -
Overview for Geologic Field-Trip Guides to Mount Mazama, Crater Lake Caldera, and Newberry Volcano, Oregon
Overview for Geologic Field-Trip Guides to Mount Mazama, Crater Lake Caldera, and Newberry Volcano, Oregon Scientific Investigations Report 2017–5022–J U.S. Department of the Interior U.S. Geological Survey Cover (top photo): View east-northeast from Garfield Peak on the south rim of Crater Lake caldera. Peak on skyline is 8,929 feet (2,722 meters) Mount Scott, an ~420 thousand years before present (ka) dacite stratovolcano considered to be part of Mount Mazama, the volcano that collapsed during the caldera-forming eruption ~7,700 years ago. The caldera walls in this view expose Mazama lava flows and fragmental deposits from as old as ~400 ka at Phantom Cone, adjacent to tiny Phantom Ship island, to as young as ~27 ka at Redcloud Cliff, the V-shaped face at the top of the wall left of center. The beheaded glacial valley of Kerr Notch, the low point on the caldera rim, is seen between Phantom Ship and Mount Scott. Photograph by Carly McLanahan. Cover (bottom photo): Newberry Volcano, Oregon, is the largest volcano in the Cascades volcanic arc. This north-facing view taken from the volcano’s peak, Paulina Peak (elevation 7,984 feet), encompasses much of the volcano’s 4-by-5-milewide central caldera, a volcanic depression formed in a powerful explosive eruption about 75,000 years ago. The caldera’s two lakes, Paulina Lake (left) and the slightly higher East Lake (right), are fed in part by active hot springs heated by molten rock (magma) deep beneath the caldera. The Central Pumice Cone sits between the lakes. -
Dr. Sean P. S. Gulick Research Professor, Institute for Geophysics
Dr. Sean P. S. Gulick Research Professor, Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin 10100 Burnet Rd Bldg. 196 (R2200) Austin, Texas 78758-4445 Phone: 512-471-0483, Fax: 512-471-0999, E-mail: [email protected] Research Interests • Tectonic processes, tectonic-climate interactions and geohazards of convergent margins and transitional tectonic environments • Role of catastrophism in the geologic record including impact cratering, hurricanes, and tectonic events • Marine and planetary geophysical imaging at nested resolutions and ground truth through drilling, coring, logging, and sampling Employment Co-Director, Center for Planetary Systems Habitability, University of Texas at Austin Jan. 2020 – Present Research Professor, University of Texas at Austin Sept. 2015 - Present Research Associate Professor, University of Texas at Austin Jan. 2012 - Aug. 2015 Research Scientist, University of Texas Institute for Geophysics Aug. 2007 - Jan. 2012 Research Associate, University of Texas Institute for Geophysics Dec. 2001 - July 2007 Post-doctoral Fellow, University of Texas Institute for Geophysics June 1999 - Nov. 2001 Education Ph.D. in Geological Sciences, Lehigh University, Bethlehem, Pennsylvania 1999 Dissertation: “Seismic studies of the southern Cascadia subduction zone near the Mendocino triple junction,” Advisor: A. Meltzer, Committee: B. Carson, D. Anastasio, S. Clarke, Jr. (USGS), and J. Diebold (LDEO). Bachelor of Science in Geology, Minor in Marine Sciences, University of North 1993 Carolina, Chapel Hill, North Carolina, Advisor: Christine Powell. Field Experience Trinity RIver Paleochannel Project (TRIPP) Bureau of Ocean & Energy Mgmt. Aug., 2018 Chief Scientist, Gulf of Mexico, R/V Trident SISIE: South Island, New Zealand, Subduction Initiation Experiment Feb.-Mar., 2018 Co-Chief Scientist, New Zealand, R/V Marcus G. -
Summits on the Air – ARM for USA - Colorado (WØC)
Summits on the Air – ARM for USA - Colorado (WØC) Summits on the Air USA - Colorado (WØC) Association Reference Manual Document Reference S46.1 Issue number 3.2 Date of issue 15-June-2021 Participation start date 01-May-2010 Authorised Date: 15-June-2021 obo SOTA Management Team Association Manager Matt Schnizer KØMOS Summits-on-the-Air an original concept by G3WGV and developed with G3CWI Notice “Summits on the Air” SOTA and the SOTA logo are trademarks of the Programme. This document is copyright of the Programme. All other trademarks and copyrights referenced herein are acknowledged. Page 1 of 11 Document S46.1 V3.2 Summits on the Air – ARM for USA - Colorado (WØC) Change Control Date Version Details 01-May-10 1.0 First formal issue of this document 01-Aug-11 2.0 Updated Version including all qualified CO Peaks, North Dakota, and South Dakota Peaks 01-Dec-11 2.1 Corrections to document for consistency between sections. 31-Mar-14 2.2 Convert WØ to WØC for Colorado only Association. Remove South Dakota and North Dakota Regions. Minor grammatical changes. Clarification of SOTA Rule 3.7.3 “Final Access”. Matt Schnizer K0MOS becomes the new W0C Association Manager. 04/30/16 2.3 Updated Disclaimer Updated 2.0 Program Derivation: Changed prominence from 500 ft to 150m (492 ft) Updated 3.0 General information: Added valid FCC license Corrected conversion factor (ft to m) and recalculated all summits 1-Apr-2017 3.0 Acquired new Summit List from ListsofJohn.com: 64 new summits (37 for P500 ft to P150 m change and 27 new) and 3 deletes due to prom corrections. -
Crater Lake National Park Oregon
DEPARTMENT OF THE INTERIOR HUBERT WORK. SECRETARY NATIONAL PARK SERVICE STEPHEN T. MATHER. DIRECTOR RULES AND REGULATIONS CRATER LAKE NATIONAL PARK OREGON PALISADE POINT, MOUNT SCOTT IN THE DISTANCE 1923 Season from July 1 to September 30 THE PHANTOM SHIP. FISHING IS EXCELLENT IN CRATER LAKE. THE NATIONAL PARKS AT A GLANCE. [Number, 19; total area, 11,372 square miles.] Area in National parks in Distinctive characteristics. order of creation. Location. squaro miles. Hot Springs Middle Arkansas li 40 hot springs possessing curative properties- 1832 Many hotels and boarding houses—20 bath houses under public control. Yellowstone Northwestern Wyo 3.348 More geysers than in all rest of world together- 1872 ming. Boiling springs—Mud volcanoes—Petrified for ests—Grand Canyon of the Yellowstone, remark able for gorgeous coloring—Large lakes—Many largo streams and waterfalls—Vast wilderness, greatest wild bird and animal preserve in world— Exceptional trout fishing. Sequoia. Middle eastern Cali 252 The Big Tree National Park—several hundred 1S90 fornia. sequoia trees over 10 feet in diameter, some 25 to 36 feet, hi diameter—Towering mountain ranges- Startling precipices—Mile long cave of delicate beauty." Yosemito Middle eastern Cali 1,125 Valley of world-famed beauty—Lofty chits—Ro 1890 fornia. mantic vistas—Many waterfalls of extraordinary height—3 groves of big trees—High Sierra— Waterwhcol falls—Good trout fishing. General Grant Middle eastern Cali 4 Created to preserve the celebrated General Grant 1S90 fornia. Tree, 3* feet in diameter—6 miles from Sequoia National Park. Mount Rainier ... West central Wash 321 Largest accessible single peak glacier system—28 1899 ington. -
Introduction to Crater Lake
National Park Service Crater Lake U.S. Department of the Interior Crater Lake National Park Introduction to Crater Lake Crater Lake Is Like No Crater Lake has inspired its visitors for hundreds of years. No place else on earth Place Else On Earth combines such a deep, pure lake with sheer surrounding cliffs and a violent volcanic past. Few places on earth are so beautiful, so pristine, or—for these very reasons—so interesting to scientists. An Introduction to Crater Lake is located in Southern Oregon on the Following the collapse of Mount Mazama, lava Crater Lake crest of the Cascade Mountain range, 100 miles poured into the caldera even as the lake began to (160 km) east of the Pacific Ocean. It lies inside a rise. Today, a small volcanic island, Wizard Island, caldera, or volcanic basin, created when the 12,000 appears on the west side of the lake. This cinder foot (3,660 meter) high Mount Mazama collapsed cone rises 767 feet (234 meters) above the lake and 7,700 years ago following a large eruption. is surrounded by black volcanic lava blocks. A small crater, 300 feet (90 meters) across and 90 feet Generous amounts of winter snow, averaging 528 (27 meters) deep, rests on the summit. The crater is inches (1,341 cm) per year, supply the lake with filled by snow during the winter months, but re- water. There are no inlets or outlets to the lake. mains dry during the summer. Crater Lake, at 1,943 feet (592 meters) deep, is the seventh deepest lake in the world and the deepest The lake level fluctuates slightly from year to year. -
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 . -
Mount Mazama and Crater Lake: Growth and Destruction of a Cascade Volcano
U.S. GEOLOGICAL SURVEY and the NATIONAL PARK SERVICE—OURVOLCANIC PUBLIC LANDS Mount Mazama and Crater Lake: Growth and Destruction of a Cascade Volcano or more than 100 years, F scientists have sought to unravel the remarkable story of Crater Lake’s formation. Before Crater Lake came into existence, a cluster of volcanoes dominated the landscape. This cluster, called Mount Mazama (for the Portland, Oregon, climbing club the Mazamas), was destroyed during an enormous explosive eruption 7,700 years ago. So much molten rock was expelled that the summit area collapsed during the eruption to form a large volcanic depression, or caldera. Subsequent smaller eruptions occurred as water began to fill the caldera to eventually form the The cataclysmic eruption deepest lake in the United States. of Mount Mazama 7,700 Decades of detailed scientific years ago began with a towering column of pumice studies of Mount Mazama and and ash, as depicted in this new maps of the floor of Crater painting by Paul Rockwood (image courtesy of Crater Lake reveal stunning details of Lake National Park Museum and Archive Collections). the volcano’s eruptive history and After the collapse of the identify potential hazards from summit of the volcano, the caldera filled with water to future eruptions and earthquakes. form Crater Lake. (Photo by Willie Scott, USGS) formation of Crater Lake and with it the Applegate and Garfield Peaks. During the When Clarence Dutton of the U.S. demise of Mount Mazama. growth of Mount Mazama, glaciers repeatedly Geological Survey (USGS) visited Crater carved out classic U-shaped valleys. -
History of Crater Lake
National Park Service Crater Lake U.S. Department of the Interior Crater Lake National Park History Cleetwood survey expedition, 1886 expedition, survey Cleetwood Crater Lake Has Inspired Crater Lake has long attracted the wonder and admiration of people all over the world. People for Many Its depth of 1,943 feet (592 meters) makes it the deepest lake in the United States, and the Generations seventh deepest in the world. Its fresh water is some of the clearest found anywhere in the world. The interaction of people with this place is traceable at least as far back as the eruption of Mount Mazama. European contact is fairly recent, starting in 1853. Original Visitors A Native American connection with this area has Accounts of the eruption can be found in stories been traced back to before the cataclysmic erup- told by the Klamath Indians, who are the descen- tion of Mount Mazama. Archaeologists have found dants of the Makalak people. The Makalaks lived sandals and other artifacts buried under layers of in an area southeast of the present park. Because ash, dust, and pumice from this eruption approxi- information was passed down orally, there are mately 7,700 years ago. To date, there is little evi- many different versions. The Umpqua people have dence indicating that Mount Mazama was a perma- a similar story, featuring different spirits. The Prehistoric sandals nent home to people. However, it was used as a Makalak legend told in the park film, The Crater found at Fort Rock, Oregon temporary camping site. Lake Story, is as follows: A Legendary Look at The spirit of the mountain was called Chief of the The mighty Skell took pity on the people and stood Formation Below World (Llao). -
Mount Mazama and Crater Lake: a Study of the Botanical and Human Responses to a Geologic Event
AN ABSTRACT OF THE THESIS OF Robyn A. Green for the degree of Master of Arts in Interdisciplinary Studies in Geology. Botany and Plant Pathology. and Anthropology presented on June 3. 1998. Title: Mount Mazama and Crater Lake: A Study of the Botanical and Human Responses to a Geologic Event Abstract approved: / Robert J. Lillie Crater Lake, located in the southern Cascade mountains of Oregon, is the seventh deepest lake in the world. Unlike a majority of the deepest lakes in the world, found in continental rift valleys, Crater Lake is in the caldera of a volcano. For the young at heart and mind, those willing to descend (and ascend) about 700 feet to Cleetwood Cove can undertake a boat tour of Crater Lake. From the boat, Crater Lake is more than just a beautiful blue lake; it becomes the inside of a volcano, where the response of people and plants to a geologic event can be investigated. The catastrophic eruption of Mount Mazama 7,700 years ago affected both plant and human populations. Before pumice and ash from the volcano blanketed the landscape like freshly fallen snow, the forests to the east of Mount Mazama were dominated by ponderosa and lodgepole pine. Within the immediate vicinity of the volcano all life was obliterated; the force of the eruptive material toppled vegetation and buried it with ash and pumice. Through the recovery process of succession, life has slowly returned to Crater Lake. Forests surrounding the lake are now dominated by mountain hemlock, whitebark pine, and lodgepole pine. These plants not only depict the process of succession, but also of adaptation to a volcanic environment. -
Mapping the Bathymetry of Crater Lake, Oregon
U.S Department of the Interior U.S. Geological Survey CRUISE REPORT R/V SURF SURVEYOR CRUISE S1-00-CL MAPPING THE BATHYMETRY OF CRATER LAKE, OREGON July 22 to August 2, 2000 James V. Gardner1, Larry A.Mayer2, and Mark Buktenica3 Open-File Report 00-405 This project was performed under a Cooperative Agreement between the US Geological Survey and the University of New Hampshire This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards. Use of trade, product, or firm names in this report is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025 2Center for Coastal and Ocean Mapping, Univ. of New Hampshire, Durham, NH 03824 3Crater Lake National Park, National Park Service, Crater Lake, OR 2000 1 Introduction During the Spring of 1999, the US Geological Survey (USGS) Pacific Seafloor Mapping Project (PSMP) was contacted by the US National Park Service Crater Lake National Park (CLNP) to inquire about the plausibility of producing a high-resolution multibeam bathymetric map of Crater Lake. The purpose was to generate a much higher- resolution and more geographically accurate bathymetric map than was produced in 1959, the last time the lake had been surveyed. Scientific interest in various aspects of Crater Lake (aquatic biology, geochemistry, volcanic processes, etc.) has increased during the past decade but the basemap of bathymetry was woefully inadequate. Funds were gathered during the early part of 2000 and the mapping began in late July, 2000. -
Crater Lake U.S
National Park Service Crater Lake U.S. Department of the Interior Refections Visitor Guide Summer/Fall 2017 Park News 2 ... Camping, Lodging, Food Visit the Sinnott Overlook 3 ... Ranger Programs f Water Restrictions in Effect Please help us conserve water during Plus 10 Other Ways to Enjoy Your Park 4 ... Hiking Trails your visit. The park’s ability to provide 5 ... Driving Map water is currently restricted as we The Sinnott Memorial Overlook ofers one of the ... In the News: Bull Trout transition from a surface water source fnest views of Crater Lake. You can peer down a 6 to a groundwater well. If you’re sheer drop of nearly 900 feet (274 meters) to the 7 ... Feature Article: Lake Level reading this before arriving, please shore! It also features the park’s best exhibits. A small stock up on water outside the park. 8 ... Climate Chart museum describes the lake’s geology, formation, and While you’re here, please take short exploration. (Of special interest is the original device showers, don’t run the tap, and reuse used by scientists to measure the lake’s depth in 1886.) towels and sheets if staying overnight Look Inside! in park lodging. Thanks for your help! Finding this special viewpoint can be a challenge. f Leave Your Drone at Home It’s hidden behind the Rim Visitor Center, perched on a promontory 50 feet (15 meters) below the rim. Operating remote-controlled aircraft Landscape architect Merel Sager, who oversaw in the park is prohibited. Please report Park Profle violators to the nearest employee.