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Boatman's Quarterly Review
boatman’s quarterly review fall 2002 the journal of volume 15 number 3 Grand Canyon River Guides, Inc Changing of Guard Prez Blurb Dear Eddy Harvey Butchart Jan Yost Back of the Boat Things to Remember Letter from G.C. Books CRMP From the Trenches Wilderness, Motors… Intrepid Lizard Suturing Where Did the Dirt Go? Ballot Comments Financials Contributors boatman’s quarterly review Changing of the Guard …is published more or less quarterly by and for Grand Canyon River Guides. ICHARD QUARTAROLi has been manning the helm Grand Canyon River Guides of gcrg (appropriate boating metaphor!) for the is a nonprofit organization dedicated to Rpast year. His contributions have been signifi- cant—from conducting a myriad of meetings (board Protecting Grand Canyon meetings, fall meeting, gts, crmp planning meetings, Setting the highest standards for the river profession you name it!), to constantly being involved with the Celebrating the unique spirit of the river community important issues at hand. His vision of an Old Timer’s Providing the best possible river experience Guides Training Seminar came to fruition with one of the best-attended sessions ever. And his involvement General Meetings are held each Spring and Fall. from start to finish was crucial to its success—from Our Board of Directors Meetings are generally held assisting with the Arizona Humanities Council grant, to the first Wednesday of each month. All innocent the lengthy planning process, and even serving as emcee bystanders are urged to attend. Call for details. of the event. It has been a supreme pleasure working with someone so committed to Grand Canyon in every Staff way, and so knowledgeable about its history. -
Trip Planner
National Park Service U.S. Department of the Interior Grand Canyon National Park Grand Canyon, Arizona Trip Planner Table of Contents WELCOME TO GRAND CANYON ................... 2 GENERAL INFORMATION ............................... 3 GETTING TO GRAND CANYON ...................... 4 WEATHER ........................................................ 5 SOUTH RIM ..................................................... 6 SOUTH RIM SERVICES AND FACILITIES ......... 7 NORTH RIM ..................................................... 8 NORTH RIM SERVICES AND FACILITIES ......... 9 TOURS AND TRIPS .......................................... 10 HIKING MAP ................................................... 12 DAY HIKING .................................................... 13 HIKING TIPS .................................................... 14 BACKPACKING ................................................ 15 GET INVOLVED ................................................ 17 OUTSIDE THE NATIONAL PARK ..................... 18 PARK PARTNERS ............................................. 19 Navigating Trip Planner This document uses links to ease navigation. A box around a word or website indicates a link. Welcome to Grand Canyon Welcome to Grand Canyon National Park! For many, a visit to Grand Canyon is a once in a lifetime opportunity and we hope you find the following pages useful for trip planning. Whether your first visit or your tenth, this planner can help you design the trip of your dreams. As we welcome over 6 million visitors a year to Grand Canyon, your -
Department of the Interior U.S
DEPARTMENT OF THE INTERIOR U.S. FISH AND WILDLIFE SERVICE REGION 2 DIVISION OF ENVIRONMENTAL CONTAMINANTS CONTAMINANTS IN BIGHORN SHEEP ON THE KOFA NATIONAL WIL DLIFE REFUGE, 2000-2001 By Carrie H. Marr, Anthony L. Velasco1, and Ron Kearns2 U.S. Fish and Wildlife Service Arizona Ecological Services Office 2321 W. Royal Palm Road, Suite 103 Phoenix, Arizona 85021 August 2004 2 ABSTRACT Soils of abandoned mines on the Kofa National Wildlife Refuge (KNWR) are contaminated with arsenic, barium, mercury, manganese, lead, and zinc. Previous studies have shown that trace element and metal concentrations in bats were elevated above threshold concentrations. High trace element and metal concentrations in bats suggested that bighorn sheep also may be exposed to these contaminants when using abandoned mines as resting areas. We found evidence of bighorn sheep use, bighorn sheep carcasses, and scat in several abandoned mines. To determine whether bighorn sheep are exposed to, and are accumulating hazardous levels of metals while using abandoned mines, we collected soil samples, as well as scat and bone samples when available. We compared mine soil concentrations to Arizona non-residential clean up levels. Hazard quotients were elevated in several mines and elevated for manganese in one Sheep Tank Mine sample. We analyzed bighorn sheep tissues for trace elements. We obtained blood, liver, and bone samples from hunter-harvested bighorn in 2000 and 2001. Arizona Game and Fish Department also collected blood from bighorn during a translocation operation in 2001. Iron and magnesium were elevated in tissues compared to reference literature concentrations in other species. Most often, domestic sheep baseline levels were used for comparison because of limited available data for bighorn sheep. -
GSA ROCKY MOUNTAIN/CORDILLERAN JOINT SECTION MEETING 15–17 May Double Tree by Hilton Hotel and Conference Center, Flagstaff, Arizona, USA
Volume 50, Number 5 GSA ROCKY MOUNTAIN/CORDILLERAN JOINT SECTION MEETING 15–17 May Double Tree by Hilton Hotel and Conference Center, Flagstaff, Arizona, USA www.geosociety.org/rm-mtg Sunset Crater is a cinder cone located north of Flagstaff, Arizona, USA. Program 05-RM-cvr.indd 1 2/27/2018 4:17:06 PM Program Joint Meeting Rocky Mountain Section, 70th Meeting Cordilleran Section, 114th Meeting Flagstaff, Arizona, USA 15–17 May 2018 2018 Meeting Committee General Chair . Paul Umhoefer Rocky Mountain Co-Chair . Dennis Newell Technical Program Co-Chairs . Nancy Riggs, Ryan Crow, David Elliott Field Trip Co-Chairs . Mike Smith, Steven Semken Short Courses, Student Volunteer . Lisa Skinner Exhibits, Sponsorship . Stephen Reynolds GSA Rocky Mountain Section Officers for 2018–2019 Chair . Janet Dewey Vice Chair . Kevin Mahan Past Chair . Amy Ellwein Secretary/Treasurer . Shannon Mahan GSA Cordilleran Section Officers for 2018–2019 Chair . Susan Cashman Vice Chair . Michael Wells Past Chair . Kathleen Surpless Secretary/Treasurer . Calvin Barnes Sponors We thank our sponsors below for their generous support. School of Earth and Space Exploration - Arizona State University College of Engineering, Forestry, and Natural Sciences University of Arizona Geosciences (Arizona LaserChron Laboratory - ALC, Arizona Radiogenic Helium Dating Lab - ARHDL) School of Earth Sciences & Environmental Sustainability - Northern Arizona University Arizona Geological Survey - sponsorship of the banquet Prof . Stephen J Reynolds, author of Exploring Geology, Exploring Earth Science, and Exploring Physical Geography - sponsorship of the banquet NOTICE By registering for this meeting, you have acknowledged that you have read and will comply with the GSA Code of Conduct for Events (full code of conduct listed on page 31) . -
Animated Tectonic Reconstruction of the Lower Colorado River Region: Implications for Late Miocene to Present Deformation Scott E
Animated tectonic reconstruction of the Lower Colorado River region: implications for Late Miocene to Present deformation Scott E. K. Bennett,1 Michael H. Darin,2 Rebecca J. Dorsey,3 Lisa A. Skinner,2 Paul J. Umhoefer,2 and Michael E. Oskin4 1U.S. Geological Survey, 2Northern Arizona University, 3University of Oregon, 4University of California, Davis Introduction of upper crustal structures that accommodated Although the majority of late Miocene to present intracontinental strain and improves our understanding Pacic–North America plate boundary strain has been of the processes that promoted localized or diuse strain accommodated by faults of the San Andreas and Gulf during reorganization of the Pacic–North America of California systems, growing evidence of dextral shear plate boundary. east of the San Andreas Fault indicates that a component Map-view translations of crustal blocks inuence of plate boundary deformation occurred in the lower the relative motions of adjacent blocks, an approach Colorado River (LoCR) region. Large-scale tectonic adhered to in global plate-circuit models (Atwater and reconstructions across the Gulf of California and Salton Stock, 1998; 2013). us, a synthesis of the magnitude Trough (GCAST) region (Fig. 1), a ~500 km-wide and timing of horizontal strain across a broad zone zone of deformation that aected the western margin of distributed deformation can provide insight into of North America, provide important constraints on processes of strain partitioning and potential kinematic the location, timing, style, and magnitude of crustal links between adjacent structural domains. Furthermore, deformation in the LoCR region (Fig. 2). Characterizing it can help prioritize and guide future work by Miocene to present deformation in the LoCR region identifying gaps in our understanding of plate boundary is important to resolve the presence and kinematics deformation and provide a degree of predictability Figure 1. -
Arizona, Road Trips Are As Much About the Journey As They Are the Destination
Travel options that enable social distancing are more popular than ever. We’ve designated 2021 as the Year of the Road Trip so those who are ready to travel can start planning. In Arizona, road trips are as much about the journey as they are the destination. No matter where you go, you’re sure to spy sprawling expanses of nature and stunning panoramic views. We’re looking forward to sharing great itineraries that cover the whole state. From small-town streets to the unique landscapes of our parks, these road trips are designed with Grand Canyon National Park socially-distanced fun in mind. For visitor guidance due to COVID19 such as mask-wearing, a list of tourism-related re- openings or closures, and a link to public health guidelines, click here: https://www.visitarizona. com/covid-19/. Some attractions are open year-round and some are open seasonally or move to seasonal hours. To ensure the places you want to see are open on your travel dates, please check their website for hours of operation. Prickly Pear Cactus ARIZONA RESOURCES We provide complete travel information about destinations in Arizona. We offer our official state traveler’s guide, maps, images, familiarization trip assistance, itinerary suggestions and planning assistance along with lists of tour guides plus connections to ARIZONA lodging properties and other information at traveltrade.visitarizona.com Horseshoe Bend ARIZONA OFFICE OF TOURISM 100 N. 7th Ave., Suite 400, Phoenix, AZ 85007 | www.visitarizona.com Jessica Mitchell, Senior Travel Industry Marketing Manager | T: 602-364-4157 | E: [email protected] TRANSPORTATION From east to west both Interstate 40 and Interstate 10 cross the state. -
Grand Canyon National Park to America’S Considered in This Evaluation
® GRAND CANYON NATIONAL PARK CANYON GRAND R esource ChallengesandFutureDirections August 2010 ® Center for State of the Parks ® More than a century ago, Congress established Yellowstone as the CONTENTS world’s first national park. That single act was the beginning of a remarkable and ongoing effort to protect this nation’s natural, historical, and cultural heritage. Today, Americans are learning that national park designation EXECUTIVE SUMMARY 1 alone cannot provide full resource protection. Many parks are INTRODUCTION 8 compromised by development of adjacent lands, air and water pollu- tion, invasive plants and animals, and rapid increases in motorized COLORADO RIVER recreation. Park officials often lack adequate information on the MANAGEMENT 19 status of and trends in conditions of critical resources. The National Parks Conservation Association initiated the State of SOUNDSCAPE the Parks program in 2000 to assess the condition of natural and MANAGEMENT 29 cultural resources in the parks, and determine how well equipped the National Park Service is to protect the parks—its stewardship capac- URANIUM MINING 35 ity. The Center for State of the Parks also authors reports detailing threats to park resources and contributes technical information to AIR QUALITY 40 inform NPCA’s work. EXTERNAL THREATS 46 For more information about the Center for State of the Parks, visit www.npca.org/stateoftheparks or contact: NPCA, Center for State of BACKCOUNTRY the Parks, P.O. Box 737, Fort Collins, CO 80522; phone: MANAGEMENT 53 970.493.2545; email: [email protected]. FRONTCOUNTRY Since 1919, the National Parks Conservation Association has been MANAGEMENT 60 the leading voice of the American people in protecting and enhanc- ing our National Park System. -
Grand Canyon West?
The Insider’s Guide to the Grand Canyon: Spring 2007 Helping You Get the Most Out of Your Grand Canyon Vacation! Thank you for choosing Grand Canyon.com as your Southwestern vacation specialist! You’ve not only chosen an extraordinary place for your vacation, but you’ve also picked a great time to visit. Having lived and worked in the Grand Canyon area for over 20 years, our staff has made a few observations and picked up a few “insider tips” that can help save you time, money and hassle - sometimes all three at once! If you’ve gotten most of your Grand Canyon vacation planned by now - booked your flights, reserved your rental car, secured hotel rooms, mapped your itinerary, etc. – then take your left hand, put it on your right shoulder, and pat yourself on the back! You get to skip to Travel Tip #8. For those who‘ve just now decided on the Grand Canyon for your spring break vacation, we hope you’ll find this guide helpful in putting together a trip you’ll be smiling about for years to come! Before you dig in, we recommend that you have a few minutes of quiet time, a map or road atlas, a pen and/or a highlighter, maybe a beverage, and your “Grand Canyon Top Tours Brochure.” Let’s get started and get YOU to the Grand Canyon! 1 Travel Tip 1 – Where Is the Grand Canyon? Grand Canyon National Park is in Northern Arizona. Travel Tip 2 – What Side Can I See it From? Grand Canyon South Rim and Grand Canyon West (a.k.a. -
Orocopia Schist in the Northern Plomosa Mountains, West-Central Arizona: a Laramide Subduction Complex Exhumed in a Miocene Metamorphic Core Complex
RESEARCH Orocopia Schist in the northern Plomosa Mountains, west-central Arizona: A Laramide subduction complex exhumed in a Miocene metamorphic core complex E.D. Strickland1, J.S. Singleton1, and G.B. Haxel2,3 1DEPARTMENT OF GEOSCIENCES, COLORADO STATE UNIVERSITY, FORT COLLINS, COLORADO 80523, USA 2U.S. GEOLOGICAL SURVEY, FLAGSTAFF, ARIZONA 86001, USA 3GEOLOGY PROGRAM, SCHOOL OF EARTH SCIENCES AND ENVIRONMENTAL SUSTAINABILITY, NORTHERN ARIZONA UNIVERSITY, FLAGSTAFF, ARIZONA 86011, USA ABSTRACT We document field relationships, petrography, and geochemistry of a newly identified exposure of Orocopia Schist, a Laramide subduction complex, in the northern Plomosa Mountains metamorphic core complex of west-central Arizona (USA). This core complex is character- ized by pervasive mylonitic fabrics associated with early Miocene intrusions. The quartzofeldspathic Orocopia Schist records top-to-the-NE mylonitization throughout its entire ~2–3 km structural thickness and 10 km2 of exposure in the footwall of the top-to-the-NE Plomosa detachment fault. The schist of the northern Plomosa Mountains locally contains graphitic plagioclase poikiloblasts and scattered coarse- grained actinolitite pods, both of which are characteristic of the Orocopia and related schists. Actinolitite pods are high in Mg, Ni, and Cr, and are interpreted as metasomatized peridotite—an association observed in Orocopia Schist at nearby Cemetery Ridge. A 3.5-km-long unit of amphibolite with minor interlayered ferromanganiferous quartzite is localized along a SE-dipping contact between the Orocopia Schist and gneiss. Based on their lithologic and geochemical characteristics, we interpret the amphibolite and quartzite as metabasalt and meta chert, respectively. The top of the Orocopia Schist is only ~3–4 km below a ca. -
Civilian Conservation Corps
The 2. Bright Angel Trailhead 3. Transcanyon Telephone Line 4. A Rock Wall with Heart building. Colter Hall has served as housing for Civilian Conservation Corps Ascend the stairway and walk to the right (west), Reverse your direction and walk east back along the Walk east along the rim to between Kachina Lodge single women concession employees since it was built in the 1930s. Did a c c c boy carve the stone A Legacy Preserved at Grand Canyon Village following the rim a few hundred feet to the stone- rim. Descend the c c c steps and continue past Kolb and El Tovar Hotel. Look for the heart-shaped and-pipe mule corral. Studio, Lookout Studio, and Bright Angel Lodge. stone in the guard wall. heart and place it in the wall as a symbol to his Look for the bronze plaque on the stone wall. beloved in Colter Hall? Or is this just an inter- Severe economic depression projects that would benefit the country. Early American Indians used the route followed by the Civilian Conservation Corps crews completely esting natural rock? No one knows. 1933 challenged the confidence of the in its existence, however, the program added Bright Angel Trail long before the first pioneers Because communication between the North rebuilt the rock wall along the rim from people of the United States. One in four people was emphasis to teach “the boys” skills and trades. arrived in the 1880s. Walk 800 feet (250 m) down and South Rims was frequently difficult and Verkamps Curios to Lookout While the c c c crews were unemployed. -
Gold Deposits Near Quartzsite, Arizona
GOLD DEPOSITS NEAR QUARTZSITE, ARIZONA. By EDWARD L. JONES, Jr. INTRODUCTION. This report is based on information obtained by the writer in April and May, 1914,. while he was classifying the lands in the Colorado River Indian Reservation. The area considered includes the south ern part of the reservation and the region extending eastward from the reservation to the Plomosa Mountains. The geology and ore deposits within the reservation were more particularly studied, the time allotted to the examination being too short to permit detailed work in the area farther east. For information concerning placers outside the reservation the writer is indebted to Mr. E. L. Du- fourcq, who conducted the testing of placer .ground near Quartz- site. Mr. W. W. McCoy, of San Bernardino, kindly furnished the early history of the La Paz district, and Mr. Edward Beggs, of Quartzsite, gave much useful information regarding the La Paz placers. In 1909 Howland Bancroft x made a geologic reconnaissance of northern Yuma County .and much of the country around Quartz- site and farther west to the reservation line. In his report he men tions the La Paz district and briefly describes placers in the Plomosa Mountains and prospects on gold-bearing quartz veins in the vicinity of Quartzsite. The map that accompanies the present report (PI. IV) is compiled from the records of the General Land Office. The area within the reservation has been subdivided into sections; the land east of the reservation is unsurveyed. The mountainous areas in the reserva tion are indicated on this map by patterns showing the geologic rock formations; the mountains in the unsurveyed area are repre sented approximately by hachures. -
Arizona's Wildlife Linkages Assessment
ARIZONAARIZONA’’SS WILDLIFEWILDLIFE LINKAGESLINKAGES ASSESSMENTASSESSMENT Workgroup Prepared by: The Arizona Wildlife Linkages ARIZONA’S WILDLIFE LINKAGES ASSESSMENT 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT Arizona’s Wildlife Linkages Assessment Prepared by: The Arizona Wildlife Linkages Workgroup Siobhan E. Nordhaugen, Arizona Department of Transportation, Natural Resources Management Group Evelyn Erlandsen, Arizona Game and Fish Department, Habitat Branch Paul Beier, Northern Arizona University, School of Forestry Bruce D. Eilerts, Arizona Department of Transportation, Natural Resources Management Group Ray Schweinsburg, Arizona Game and Fish Department, Research Branch Terry Brennan, USDA Forest Service, Tonto National Forest Ted Cordery, Bureau of Land Management Norris Dodd, Arizona Game and Fish Department, Research Branch Melissa Maiefski, Arizona Department of Transportation, Environmental Planning Group Janice Przybyl, The Sky Island Alliance Steve Thomas, Federal Highway Administration Kim Vacariu, The Wildlands Project Stuart Wells, US Fish and Wildlife Service 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT First Printing Date: December, 2006 Copyright © 2006 The Arizona Wildlife Linkages Workgroup Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written consent from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written consent of the copyright holder. Additional copies may be obtained by submitting a request to: The Arizona Wildlife Linkages Workgroup E-mail: [email protected] 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT The Arizona Wildlife Linkages Workgroup Mission Statement “To identify and promote wildlife habitat connectivity using a collaborative, science based effort to provide safe passage for people and wildlife” 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT Primary Contacts: Bruce D.