2011-12 State of the Rockies Project
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												  Trip PlannerNational 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
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												  How to Prepare for Traveling on I-70 in Glenwood Canyon (Spring 2021)How to prepare for traveling on I-70 in Glenwood Canyon (Spring 2021) I-70 in Glenwood Canyon Motorists traveling on Interstate 70 should prepare for reduced speeds, slick roads and limited visibility in Glenwood Canyon, as well as other spring weather conditions that are common along the I-70 mountain corridor. If there is rain in the forecast, motorists should anticipate a possible safety closure of I-70, rest areas and the Glenwood Canyon bike path in the canyon. These safety closures are to protect the traveling public from the potential for debris flow, mudslides or rockfall. Construction impacts will be much lighter on I-70 in Glenwood Canyon compared to Summer 2020. To ensure safety, motorists should plan for occasional lane closures, obey reduced speeds and drive with caution. CDOT also urges travelers to stay focused on the road and avoid distracted driving. Please see below for information about the Glenwood Canyon rest areas and bike path. How to plan ahead Motorists planning to travel on I-70, visit rest areas or ride the bike path in Glenwood Canyon should pay close attention to weather forecasts. I f there is rain in the forecast, be prepared for a safety closure of I-70, rest areas and bike path. CDOT recommends that travelers have a back up plan in the event that closures are necessary. Please refer to w ww.cotrip.org for the latest road conditions and route options. More information is below for planning an alternate route. CDOT also recommends that travelers bring an emergency kit with water, snacks, a flashlight and a blanket, as mountain conditions often change suddenly.
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												  Evaluation of Hanging LakeEvaluation of Hanging Lake Garfield County, Colorado for its Merit in Meeting National Significance Criteria as a National Natural Landmark in Representing Lakes, Ponds and Wetlands in the Southern Rocky Mountain Province prepared by Karin Decker Colorado Natural Heritage Program 1474 Campus Delivery Colorado State University Fort Collins, CO 80523 August 27, 2010 TABLE OF CONTENTS TABLE OF CONTENTS ................................................................................................. 2 LISTS OF TABLES AND FIGURES ............................................................................. 3 EXECUTIVE SUMMARY .............................................................................................. 4 EXECUTIVE SUMMARY .............................................................................................. 4 INTRODUCTION............................................................................................................. 5 Source of Site Proposal ................................................................................................... 5 Evaluator(s) ..................................................................................................................... 5 Scope of Evaluation ........................................................................................................ 5 PNNL SITE DESCRIPTION ........................................................................................... 5 Brief Overview ...............................................................................................................
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												  Colorado River Basin: System Status Update and Outlook for 2018 and 2019Colorado River Basin: System Status Update and Outlook for 2018 and 2019 Daniel Bunk River Operations Manager Boulder Canyon Operations Office, Lower Colorado Region Colorado River Citizens Forum in Yuma, Arizona January 24, 2018 Topics • Overview of the Colorado River Basin • Colorado River Drought • Projected Conditions • Drought Response Activities • Summary 2 Overview of the Colorado River System • 16.5 million acre-feet (maf) allocated annually - 7.5 maf each to Upper and Lower Basins and 1.5 maf to Mexico - 13 to 14.5 maf of basin-wide consumptive use annually • 16 maf average annual “natural flow” (based on historical record) - 14.8 maf in the Upper Basin and 1.3 maf in the Lower Basin • Inflows are highly variable year to year • 60 maf of storage (nearly 4-times the annual inflow) • The System is operated on a type hydrologic budget 3 Natural Flow Colorado River at Lees Ferry Gaging Station, Arizona Water Year 1906 to 2018 Colorado River at Lees Ferry, AZ - Natural Flow 30 30 Average 10-yr Moving Average 25 25 20 20 15 15 Annual Annual Flow(MAF) 10 10 5 5 0 0 Water Year Provisional data, subject to change Estimated values for 2016-2018 4 Water Budget at Lake Mead Given current water demands in the Lower Basin and Mexico, and a minimum objective release from Lake Powell (8.23 maf), Lake Mead storage declines by about 1.2 maf annually (equivalent to about 12 feet in elevation). Inflow 9.0 maf (Powell release + side inflows above Mead) Outflow -9.6 maf (Lower Division State apportionments and Mexico Treaty allocation, plus balance of downstream regulation, gains, and losses) Mead evaporation loss -0.6 maf Balance -1.2 maf 5 Lake Mead End of Month Elevation 1,225 Spillway Crest 1221 ft 1,200 1,175 September 1999 December 2017 39% of Capacity 1,150 95% of Capacity 1,125 1,100 Elevation (ft) Elevation 1,075 1,050 Prior to 1999, Lake Mead was last at elevation 1,082.52 feet in June 1937.
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												  Lee's Ferry Historic DistrictSTATE: Form 10-31/0 UNITED STATES DEPARTMENT OF THE INTERIOR (Oct. 1972) NATIONAL PARK SERVICE Arizona NATIONAL REGISTER OF HISTORIC PLACES Coconino INVENTORY-NOMINATION FORM FOR NPSUSE ONLY FOR FEDERAL PROPERTIES ENTRY DATE. (Type all entries - complete applicable sections) Lees Ferry Sections 13 & 18. T.40N., R.7E. & R.8E. Lees Ferry District, en Canyon NRA Rep.' J . Sam StM>j>r^.»Jj^" V •',.- 3 CATEGORY ACCESSIBLE OWNERSHIP STATUS (Check One) TO THE PUBLIC QJ District [~1 Building Public Acquisition: l Occupied Yes: Q Site |—| Structure f~] Private I I In Process [ | Unoccupied [~~1 Restricted O Object CD Bofh I | Being Considered I | Preservation work ££] Unrestricted in progress CD No PRESENT USE (Check One or Afore as Appropriate) |~~| Agricultural (3 Government Transportation (~~1 Comments [~2fl Commercial F~| Industrial | | Private Residence Other fS | | Educational Q Military I | Religious recreation - jump nff | | Entertainment [~] Museum Scientific point for Hoi oradn U.S. National Park Service.- Glen Canyon National Recreation Area REGIONAL HEADQUARTERS: (It applicable) STREET AND NUMBER: 5 M P.O. Box 1507 O 3 CITY OR TOWN: P) Page Ari zona 11 COURTHOUSE, REGISTRY O-F DEEDS, ETC: Establishing legislation for Glen Canyon National Recreation Arc>a STREET AND NUMBER: CITY OR TOWN: TITLE OF SURVEY: Arcgeological Survey of Glen Canvon DATE OF SURVEY: - ~\ 963 Federal Lxl State [~1 County Local DEPOSITORY FOR SURVEY RECORDS: Utah Statewide Archeolocpcal Survey: Glen Canyon Series STREET AND NUMBER: Department of Anthropology - University of Utah CITY OR TOWN: STATE: CODE Cit Utah. 49 continued on 10-300a Form 10-300o UNITED STATES DEPARTMENT OF THE INTERIOR (July 1969) NATIONAL PARK SERVICE Arizona NATIONAL REGISTER OF HISTORIC PLACES Coconino INVENTORY - NOMINATION FORM FOR NPS USE ONLY ENTRY NUMBER DATE (Continuation Sheet) IS (Number all entries) 6.
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												  Frequently Asked QuestionsFrequently Asked Questions Prepared cooperatively by Bureau of Reclamation, National Park Service, U.S. Fish and Wildlife Service, and U.S. Geological Survey What is a high-flow experiment? A high-flow experiment is a release of water from Glen Canyon Dam intended to rebuild high- elevation sandbars, deposit nutrients, and restore backwater channels. For 2008, it is proposed that approximately 41,000 cubic feet per second (cfs) of water be released from Glen Canyon Dam for 60 hours. What are the anticipated benefits of a high-flow experiment? Higher than normal flows are required to deposit sand up and onto eroded Grand Canyon sandbars, which serve as camping beaches for river runners and hikers, provide sediment needed to protect archaeological resources from erosion and weathering, and create habitats used by native fishes, particularly the endangered humpback chub (Gila cypha) and other wildlife. The experimental studies associated with the proposed 2008 high-flow experiment are designed to build upon existing scientific knowledge to inform managers about the efficacy of using high flows from the dam to improve a range of resources, including not only sandbars and humpback chub habitat, but also rainbow trout (Oncorhynchus mykiss), the aquatic food base, riparian vegetation, archaeological sites, and water quality. What is adaptive management? Adaptive management is generally understood to be a systematic process for continually improving management practices over time by emphasizing learning through experimentation. Adaptive management also incorporates collaboration among stakeholders, managers, and scientists who are knowledgeable about the system being evaluated. The comprehensive, iterative, and collaborative nature of an adaptive management approach is why it was implemented as part of the long-term management strategy for refining operations of Glen Canyon Dam to improve downstream resources.
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												  Chapter 3 – Affected EnvironmentGlen Canyon Dam Long-Term Experimental and Management Plan October 2016 Final Environmental Impact Statement 3 AFFECTED ENVIRONMENT Chapter 3 describes the environmental resources (physical, biological, cultural, recreational, and socioeconomic) that could be affected by the range of alternatives for implementing the Glen Canyon Dam Long-Term Experimental and Management Plan (LTEMP), as described in Chapters 1 and 2. The extent to which each specific resource may be affected by each alternative is discussed in Chapter 4, Environmental Consequences.1 3.1 PROJECT AREA The project area includes the area potentially affected by implementation of the LTEMP (including normal management and experimental operations of Glen Canyon Dam and non-flow actions). This area includes Lake Powell, Glen Canyon Dam, and the river downstream to Lake Mead (Figure 3.1-1). More specifically, the scope primarily encompasses the Colorado River Ecosystem, which includes the Colorado River mainstream corridor and interacting resources in associated riparian and terrace zones, located primarily from the forebay of Glen Canyon Dam to the western boundary of Grand Canyon National Park (GCNP). It includes the area where dam operations impact physical, biological, recreational, cultural, and other resources. This section of the river runs through Glen, Marble, and Grand Canyons in Coconino and Mohave Counties in northwestern Arizona. Although this EIS focuses primarily on the Colorado River Ecosystem, the affected area varies by resources and extends outside of the immediate river corridor for some resources and cumulative impacts. Portions of Glen Canyon National Recreation Area (GCNRA), GCNP, and Lake Mead National Recreation Area (LMNRA) outside the Colorado River Ecosystem are also included in the affected region for certain resources due to the potential effects of LTEMP operations.
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												  An Analysis of the Potential for Glen Canyon Dam Releases to Inundate Archaeological Sites in the Grand Canyon, ArizonaAn Analysis of the Potential for Glen Canyon Dam Releases to Inundate Archaeological Sites in the Grand Canyon, Arizona Open-File Report 2014–1193 U.S. Department of the Interior U.S. Geological Survey Cover: View of the Colorado River and its left bank at river mile 72.7, looking north from Unkar Delta. Photograph taken by A. East, U.S. Geological Survey, May 3, 2013. An Analysis of the Potential for Glen Canyon Dam Releases to Inundate Archaeological Sites in the Grand Canyon, Arizona By Hoda A. Sondossi and Helen C. Fairley Open-File Report 2014–1193 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior SALLY JEWELL, Secretary U.S. Geological Survey Suzette Kimball, Acting Director U.S. Geological Survey, Reston, Virginia: 2014 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit http://www.usgs.gov or call 1–888–ASK–USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Suggested citation: Sondossi, H.A., and Fairley, H.C., 2014, An analysis of the potential for Glen Canyon Dam releases to inundate archaeological sites in the Grand Canyon, Arizona: U.S. Geological Survey Open-File Report 2014-1193, 26 p., http://dx.doi.org/10.3133/ofr20141193. ISSN 2331-1258 (online) Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S.
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												  The Colorado River in Grand Canyon: How Fast Does It Flow?Grand Canyon Monitoring and Research Program The Colorado River U.S. Department of the Interior U.S. Geological Survey in Grand Canyon: How Fast Does It Flow? Opening the jet tubes at Glen Canyon Dam on March 26, 1996, released from Lake Powell a con- trolled flood of water that traveled down the Colorado River in Grand Canyon. How fast did the water move? How long did it take for water to reach a particular point along the river? The answers to these questions are important because the speed of river water affects the amount of physical and chemical changes, such as warming by sunlight, that the water will undergo as it moves downstream. Also, very fine particles and substances dissolved in the water travel along with the water, and the speed of the water tells us how fast these move downstream. How is the Water Speed Athough the dye is easy to see where it is first put into the river, it quickly mixes with the much larger mass of river water and becomes invisible. The highest concentration Measured? at sampling sites was between 5 and 35 parts per billion. One part per billion is about equal to one drop in a backyard swimming pool. One way to measure the speed of water is to tag it with a harmless Glen Paria Canyon 114° UTAH ° ° ° substance that is easily identified and 37° 113 112 Ri Dam 111 ve measured with the proper instruments. ARIZONA r River Lees Ferry These substances are called water tracers gin PAGE and are commonly used in both ground Vir water and surface water to track the water movement.
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												  Salinity of Surface Water in the Lower Colorado River Salton Sea AreaSalinity of Surface Water in The Lower Colorado River Salton Sea Area, By BURDGE IRELAN, WATER RESOURCES OF LOWER COLORADO RIVER-SALTON SEA AREA pl. GEOLOGICAL SURVEY, PROFESSIONAL PAPER 486-E . i V ) 116) P, UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1971 CONTENTS Page Page Abstract El Ionic budget of the Colorado River from Lees Ferry to Introduction 2 Imperial Dam, 1961-65-Continued General chemical characteristics of Colorado River Tapeats Creek E26 water from Lees Ferry to Imperial Dam 2 Havasu Creek -26 Lees Ferry . 4 Virgin River - 26 Grand Canyon 6 Unmeasured inflow between Grand Canyon and Hoover Dam 8 Hoover Dam 26 Lake Havasu 11 Chemical changes in Lake Mead --- ---- - 26 Imperial Dam ---- - 12 Bill Williams River 27 Mineral burden of the lower Colorado River, 1926-65 - 12 Chemical changes in Lakes Mohave and Havasu ___ 27 Analysis of dissolved-solids loads 13 Diversion to Colorado River aqueduct 27 Analysis of ionic loads ____ - 15 Parker Dam to Imperial Dam 28 Average annual ionic burden of the Colorado River 20 Ionic accounting of principal irrigation areas above Ionic budget of the Colorado River from Lees Ferry to Imperial Dam - __ -------- 28 Imperial Dam, 1961-65 ____- ___ 22 General characteristics of Colorado River water below Lees Ferry 23 Imperial Dam Paria River 23 Ionic budgets for the Colorado River below Imperial Little Colorado River 24 Blue Springs --- 25 Dam and Gila River - 34 Unmeasured inflow from Lees Ferry to Grand Quality of surface water in the Salton Sea basin in Canyon 25 California Grand Canyon 25 Summary of conclusions 39 Bright Angel Creek 25 References ILLUSTRATIONS Page FIGURE 1 .
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												  The Colorado River District: Protecting the River Why Irrigated Ag Defines Water in the West the Link Between Lake Powell and LoFuture Water NEWS FROM THE COLORADO RIVER DISTRICT The Colorado River District: Protecting the River Why Irrigated Ag Defines Water in the West The Link Between Lake Powell and Local Water Use How the ‘Law of the River’ Governs the Colorado Meet the Colorado River District Board of Directors Future Water NEWS FROM THE COLORADO RIVER DISTRICT Adapting to the new realities in the Colorado River Basin. April 2018 Inside this Issue Welcome to this new style of an annual report from the Colorado River District. It is designed to be a comprehensive overview of Colorado River water issues and the District’s work to address them. As always, details of our programs, financials and more can be found at ColoradoRiverDistrict.org. Tom Alvey discusses the importance of agriculture in the new era of growing population, drought and increased water Black Canyon of the Gunnison River demands in the West. PAGE Our mission: To lead in the protection, conservation, use and 4 development of the water resources of the Colorado River Basin for the welfare of the District, and to safeguard for Colorado all waters of the Colorado River to which the state is entitled. Ag & Shoshone Hydro Water Rights Why they are important for western 201 Centennial St., Glenwood Springs, CO 81601 Colorado River District Staff (970) 945-8522 Colorado. Wyoming PAGE The Colorado River District Colorado. We own and operate Hunter Causey Don Meyer protects western Colorado Wolford Mountain Reservoir in 6 Water Resources Engineer Senior Water Resources Engineer water resources on behalf of Grand County in conjunction Sonja Chavez Martha Moore Utah the 500,000 people in northwest with our partner, Denver Water.
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												  Rethinking Water Storage on the Southern Colorado PlateauRethinking water storage on the southern Colorado Plateau Jack Schmidt https://qcnr.usu.edu/wats/colorado_river_studies/https://qcnr.usu.edu/wats/colorado_river_studies/ Fill Mead First -- establish Lake Mead as the primary reservoir storage facility; 2015 store water in Lake Powell only when Lake Mead is full. 2016 • Objectives • Expose Glen Canyon’s sandstone walls • Recreate natural flow, sediment transport, and temperature regime in Grand Canyon • Save water (300,000 – 600,000 af/yr) • Eliminate need for Glen Canyon Dam Adaptive Management Program Fill Mead First Proposal • Phase I – reduce storage in Lake Powell to minimum power pool elevation (3490 ft asl) • Phase II – reduce storage in Lake Powell to dead pool (3370 ft asl) • Phase III – drill new diversion tunnels and fully drain Lake Powell New York Times, May 20, 2016 ~0.49 M af/yr evaporated from Powell ~0.37 M af/yr seepage losses ~0.55 M af/yr saved Myers, 2010, Planning the Colorado River in a changing climate: reservoir loss New York Times, May 20, 2016 rates in Lakes Powell and Mead and their use in CRSS. Consulting report to GCI. Myers, 2013, Loss rates from Lake Powell and their impact on management of the Colorado River. Journal of the American Water Resources Association GRGr ?SRRGr CRC P ??E ?DDRH ?ER E ??tribsungaged ??Gstorage:long + ??Gstorge:short SJRB ??Gseepage CR LF = + ± ∆ − − Calculation of Water Savings by Myers (2010, 2013) = ± LossesPowell = E + G 770,000 af/yr (+60,000) = 500,000 af/yr + 270,000 af/yr (+60,000) LossesMead = E + G 880,000 af/yr