Merced River Hiking
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Section 1135 Ecosystem Restoration Study
U.S. Army Corps of Engineers, Omaha District Section 1135 Ecosystem Restoration Study Integrated Feasibility Report and Environmental Assessment Southern Platte Valley Denver, Colorado June 2018 South Platte River near Overland Pond Park TABLE OF CONTENTS 1. INTRODUCTION .......................................................................................................... 1 1.1. STUDY AUTHORITY ............................................................................................ 1 1.2. STUDY SPONSOR AND CONGRESSIONAL AUTHORIZATION ................... 1 1.3. STUDY AREA AND SCOPE ................................................................................. 1 2. PURPOSE, NEED AND SIGNIFICANCE .................................................................... 3 2.1. NEED: PROBLEMS AND OPPORTUNITIES ...................................................... 4 2.2. PURPOSE: OBJECTIVES AND CONSTRAINTS ................................................ 7 2.3. SIGNIFICANCE ...................................................................................................... 8 3. CURRENT AND FUTURE CONDITIONS ................................................................ 16 3.1. PLANNING HORIZON ........................................................................................ 16 3.2. EXISTING CONDITIONS .................................................................................... 16 3.3. PREVIOUS STUDIES .......................................................................................... 17 3.4. EXISTING PROJECTS -
Jefferson County, Colorado, and Incorporated Areas
VOLUME 1 OF 8 JEFFERSON COUNTY, Jefferson County COLORADO AND INCORPORATED AREAS Community Community Name Number ARVADA , CITY OF 085072 BOW MAR, TOWN OF * 080232 EDGEWATER, CITY OF 080089 GOLDEN, CITY OF 080090 JEFFERSON COUNTY 080087 (UNINCORPORATED AREAS) LAKESIDE , TOWN OF * 080311 LAKEWOOD, CITY OF 085075 MORRISON, TOWN OF 080092 MOUNTAIN VIEW, TOWN OF* 080254 WESTMINSTER, CITY OF 080008 WHEAT RIDGE , CITY OF 085079 *NO SPECIAL FLOOD HAZARD AREAS IDENTIFIED REVISED DECEMBER 20, 2019 Federal Emergency Management Agency FLOOD INSURANCE STUDY NUMBER 08059CV001D NOTICE TO FLOOD INSURANCE STUDY USERS Communities participating in the National Flood Insurance Program have established repositories of flood hazard data for floodplain management and flood insurance purposes. This Flood Insurance Study may not contain all data available within the repository. It is advisable to contact the community repository for any additional data. Part or all of this Flood Insurance Study may be revised and republished at any time. In addition, part of this Flood Insurance Study may be revised by the Letter of Map Revision process, which does not involve republication or redistribution of the Flood Insurance Study. It is, therefore, the responsibility of the user to consult with community officials and to check the community repository to obtain the most current Flood Insurance Study components. Initial Countywide FIS Effective Date: June 17, 2003 Revised FIS Dates: February 5, 2014 January 20, 2016 December 20, 2019 i TABLE OF CONTENTS VOLUME 1 – December -
Yosemite National Park Foundation Overview
NATIONAL PARK SERVICE • U.S. DEPARTMENT OF THE INTERIOR Foundation Document Overview Yosemite National Park California Contact Information For more information about Yosemite National Park, Call (209) 372-0200 (then dial 3 then 5) or write to: Public Information Office, P.O. Box 577, Yosemite, CA 95389 Park Description Through a rich history of conservation, the spectacular The geology of the Yosemite area is characterized by granitic natural and cultural features of Yosemite National Park rocks and remnants of older rock. About 10 million years have been protected over time. The conservation ethics and ago, the Sierra Nevada was uplifted and then tilted to form its policies rooted at Yosemite National Park were central to the relatively gentle western slopes and the more dramatic eastern development of the national park idea. First, Galen Clark and slopes. The uplift increased the steepness of stream and river others lobbied to protect Yosemite Valley from development, beds, resulting in formation of deep, narrow canyons. About ultimately leading to President Abraham Lincoln’s signing 1 million years ago, snow and ice accumulated, forming glaciers the Yosemite Grant in 1864. The Yosemite Grant granted the at the high elevations that moved down the river valleys. Ice Yosemite Valley and Mariposa Grove of Big Trees to the State thickness in Yosemite Valley may have reached 4,000 feet during of California stipulating that these lands “be held for public the early glacial episode. The downslope movement of the ice use, resort, and recreation… inalienable for all time.” Later, masses cut and sculpted the U-shaped valley that attracts so John Muir led a successful movement to establish a larger many visitors to its scenic vistas today. -
Rainfall Thresholds for Flow Generation in Desert Ephemeral
Water Resources Research RESEARCH ARTICLE Rainfall Thresholds for Flow Generation 10.1029/2018WR023714 in Desert Ephemeral Streams 1 1 2 1 Key Points: Stephanie K. Kampf G!), Joshua Faulconer , Jeremy R. Shaw G!), Michael Lefsky , Rainfall thresholds predict 3 2 streamflow responses with high Joseph W. Wagenbrenner G!), and David J. Cooper G!) accuracy in small hyperarid and 1 2 semiarid watersheds Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, Colorado, USA, Department 3 Using insufficient rain data usually of Forest and Rangeland Stewardship, Colorado State University, FortCollins, Colorado, USA, USDA Forest Service, Pacific increases threshold values for larger Southwest Research Station, Arcata, California,USA watersheds, leading to apparent scale dependence in thresholds Declines in flow frequency and Rainfall thresholds for streamflow generation are commonly mentioned in the literature, but increases in thresholds with drainage Abstract area are steeper in hyperarid than in studies rarely include methods for quantifying and comparing thresholds. This paper quantifies thresholds semiarid watersheds in ephemeral streams and evaluates how they are affected by rainfall and watershed properties. The study sites are in southern Arizona, USA; one is hyperarid and the other is semiarid. At both sites rainfall and 3 2 2 Supporting Information: streamflow were monitored in watersheds ranging from 10- to 10 km . Streams flowed an average of 0-5 • Supporting Information 51 times per year in hyperarid watersheds and 3-11 times per year in semiarid watersheds. Although hyperarid sites had fewer flow events, their flow frequency (fraction of rain events causing flow) was higher than in Correspondence to: 2 semiarid sites for small ( < 1 km ) watersheds. -
Gully Migration on a Southwest Rangeland Watershed
Gully Migration on a Southwest Rangeland Watershed Item Type text; Article Authors Osborn, H. B.; Simanton, J. R. Citation Osborn, H. B., & Simanton, J. R. (1986). Gully migration on a Southwest rangeland watershed. Journal of Range Management, 39(6), 558-561. DOI 10.2307/3898771 Publisher Society for Range Management Journal Journal of Range Management Rights Copyright © Society for Range Management. Download date 25/09/2021 03:08:17 Item License http://rightsstatements.org/vocab/InC/1.0/ Version Final published version Link to Item http://hdl.handle.net/10150/645347 Gully Migration on a Southwest Rangeland Watershed H.B. OSBORN AND J.R. SIMANTON Abstract Most rainfall and almost all runoff from Southwestern range- on gully erosion is from farmlands, rather than rangelands. lands are the result of intense summer thunderstorm null. Gully The southeastern Arizona geologic record indicates gullying has growth and headcutting are evident throughout the region. A occurred in the past, but the most recent intense episode of acceler- large, active headcut on a Walnut Gulch subwatershed has been ated gullying appears to have begun in the 1880’s (Hastings and surveyed at irregular intervals from 1966 to present. Runoff at the Turner 1965). Gullies in the 2 major stream channels of southeast- headcut was estimated using a kinematic cascade rainfall-runoff ern Arizona, the San Pedro and Santa Cruz Rivers, began because model (KINEROS). The headcut sediment contribution was about of man’s activities in the flood plains and were accelerated by 25% of the total sediment load measured downstream from the increased runoff from overgrazed tributary watersheds. -
Yosemite National Park U.S
National Park Service Yosemite National Park U.S. Department of the Interior Merced Wild & Scenic River Final Comprehensive Management Plan and Environmental Impact Statement Designated in 1987, the The Merced Wild and Scenic River Merced Wild and Scenic River Final Comprehensive Merced Wild and Scenic River includes 81 miles The Merced Wild and Scenic River, designated in Management Plan and Environmental Impact State- in Yosemite National 1987, includes 122 miles of the Merced River on the ment (Final Merced River Plan/EIS) is the National Park and the El Portal Park Service’s response to these requirements. Administrative Site. western side of the Sierra Nevada in California. The National Park Service (NPS) manages 81 miles of the Merced Wild and Scenic River through Yosem- The Final Merced River Plan/EIS will be the guid- ite National Park and the El Portal Administrative ing document for protecting and enhancing river Site, including the headwaters and both the Mer- values and managing use and user capacity within ced River’s main stem and the South Fork Merced the Merced River corridor for the next 20 years. As River. As the Merced River flows outside Yosemite’s such, it evaluates impacts and threats to river values western boundary, the U.S. Forest Service and the and identifies strategies for protecting and enhanc- Bureau of Land Management manage the next 41 ing these values over the long-term. The plan fol- miles of the Merced Wild and Scenic River. lows and documents planning processes required by the National Environmental Policy Act (NEPA), Why a Comprehensive Management Plan? the National Historic Preservation Act (NHPA), The Wild and Scenic Rivers Act (WSRA) requires and other legal mandates governing National Park comprehensive planning for all designated rivers to Service decision-making. -
Sacramento and San Joaquin Basins Climate Impact Assessment
Technical Appendix Sacramento and San Joaquin Basins Climate Impact Assessment U.S. Department of the Interior Bureau of Reclamation October 2014 Mission Statements The mission of the Department of the Interior is to protect and provide access to our Nation’s natural and cultural heritage and honor our trust responsibilities to Indian Tribes and our commitments to island communities. The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. Technical Appendix Sacramento and San Joaquin Basins Climate Impact Assessment Prepared for Reclamation by CH2M HILL under Contract No. R12PD80946 U.S. Department of the Interior Bureau of Reclamation Michael K. Tansey, PhD, Mid-Pacific Region Climate Change Coordinator Arlan Nickel, Mid-Pacific Region Basin Studies Coordinator By CH2M HILL Brian Van Lienden, PE, Water Resources Engineer Armin Munévar, PE, Water Resources Engineer Tapash Das, PhD, Water Resources Engineer U.S. Department of the Interior Bureau of Reclamation October 2014 This page left intentionally blank Table of Contents Table of Contents Page Abbreviations and Acronyms ....................................................................... xvii Preface ......................................................................................................... xxi 1.0 Technical Approach .............................................................................. 1 2.0 Socioeconomic-Climate Future -
Campground in Yosemite National Park
MileByMile.com Personal Road Trip Guide California Byway Highway # "Tioga Road/Big Oak Flat Road" Miles ITEM SUMMARY 0.0 End of Tioga Pass Road on Scenic Tioga Pass Road on State Highway #120, ends at the junction of State Highway #120 Big Oak Road just outside Yosemite Valley within Yosemite National Park, California. Altitude: 6158 feet 0.6 Tuolumne Grove Trail Tuolumne Grove Trail Head, Tioga Pass Road, Tuolumne Grove, is a Head sequoia grove located near Crane Flat in Yosemite National Park, California Altitude: 6188 feet 3.7 Old Big Oak Flat Road South to Tamarack Flat Campground in Yosemite National Park. Has 52 campsites, picnic tables, food lockers, fire rings, and vault toilets. Altitude: 7018 feet 6.2 Old Tioga Road Trail To Old Tioga Road, Hetch Hetchy Reservoir, lies in Hetch Hetchy Valley, which is completely flooded by the Hetch Hetchy Dam, in Yosemite National Park, California. Wapama Falls, in Hetch Hetchy Valley, Lake Vernon, Rancheria Falls, Rancheria Creek, Camp Mather Lake. Altitude: 6772 feet 6.2 Trail to Tamarrack Flat Altitude: 6775 feet Campground 13.7 Siesta Lake Altitude: 7986 feet 14.5 White Wolf Road To White Wolf Campground, located outside of Yosemite Valley, just off Tioga Pass Road in California. Altitude: 8117 feet 16.5 Access To Luken's Lake, Yosemite Creek Trail, Altitude: 8182 feet 19.7 Access A mountainous Road/Trail, Quaking Aspen Falls, is a seasonal water fall, that stream relies on rain and snow melting, dries up in summer, located just off Tioga Pass Road, in Yosemite National Park, Altitude: 7500 feet 20.3 Quaking Aspen Falls East of highway. -
STUDY of INCREASING CONVEY CAPACITY of MERCED RIVER at the CONFLUENCE with SAN JOAQUIN RIVER a Project Presented to the Faculty
STUDY OF INCREASING CONVEY CAPACITY OF MERCED RIVER AT THE CONFLUENCE WITH SAN JOAQUIN RIVER A Project Presented to the faculty of the Department of Civil Engineering California State University, Sacramento Submitted in partial satisfaction of the requirements for the degree of MASTER OF SCIENCE in Civil Engineering (Water Resources Engineering) by Hani Nour SUMMER 2017 © 2017 Hani Nour ALL RIGHTS RESERVED ii STUDY OF INCREASING CONVEY CAPACITY OF MERCED RIVER AT THE CONFLUENCE WITH SAN JOAQUIN RIVER A Project by Hani Nour Approved by: __________________________________, Committee Chair Dr. Saad Merayyan __________________________________, Second Reader Dr. Cristina Poindexter, P.E. ___________________________ Date iii Student: Hani Nour I certify that this student has met the requirements for format contained in the University format manual, and that this project is suitable for shelving in the Library and credit is to be awarded for the project. _________________________, Department Chair ______________ Dr. Benjamin Fell, P.E. Date Department of Civil Engineering iv Abstract of STUDY OF INCREASING CONVEY CAPACITY OF MERCED RIVER AT THE CONFLUNENCE WITH SAN JOAQUIN RIVER by Hani Nour Flooding in California’s Central Valley is very common and expected to occur every year anywhere throughout the region. The climate and geography of the Central Valley, together, are responsible for over flow streams, rivers, and lakes causing water flooding, particularly at the lower elevation areas. San Joaquin Basin is located between the Sierra Nevada (on the east) and the Coast Ranges (on the west) where flooding is typically characterized by infrequent severe storms during winter season due to heavy rain and snow- melt runoff coming from the foothills, east of Merced County (Jesse Patchett 2012). -
Index of Surface-Water Records
GEOLOGICAL SURVEY CIRCULAR 72 January 1950 INDEX OF SURFACE-WATER RECORDS PART 11.PPACIFIC SLOPE BASINS IN CALIFORNIA TO SEPTEMBER 30, 1948 Prepared by San Francisco District UNITED STATES DEPARTMENT OF THE INTERIOR Oscar L. Chapman, Secretary GEOLOGICAL SURVEY W. E. Wrather, Director WASHINGTON, D. C. Free on application to the Director, Geological Survey, Washington 26, D. C. INDEX OF SURFACE-WATER RECORDS PART 11.PPACIFIC SLOPE BASINS IN CALIFORNIA TO SEPTEMBER 30, 1948 EXPLANATION The index lists the stream-flow ana reservoir stations in the Pacific Slope Basins in California for which records have been or are to be pub lished for periods prior to September 30, 1948. The stations are listed in downstream order. Tributary streams are indicated by indention. Station names are given in their most recently published forms. Paren theses around part of a station name indicate that the enclosed word or words were used in an earlier published name of the station or in a name under which records were published by some agency other than the Geological Survey. The drainage areas, in square miles, are the latest figures published or otherwise available at this time. Drainage areas that were obviously inconsistent with other drainage areas on the same stream have been omitted. Some drainage areas not published by the Geological Survey are listed with an appropriate footnote stating the published source of the figure of drainage area. Under "period of record" breaks of less than a 12-month period are not shown. A dash not followed immediately by a closing date shows that the station was in operation on September 30, 1948. -
WEB GYMOAZ01-20 Yosemite-Annie
JOHN MUIR’S YOSEMITE BY ANNE GROEBNER As I drove north on California Route 395 toward Sacramento, I was shadowed on my left by the magnificent Eastern Sierra Nevada Mountains. Mountain ranges that are so tall that wisps of snow still clung to the tops of ridges even on that warm, late August evening. I knew that somewhere, hidden behind the facade of towering cliffs and jagged mountain ranges, I would find one of the most majestic of the American National Park System — Yosemite National Park. It was a place that I had read about in school and heard about but had never had the chance to see. I was so close that I could have driven past my reservation in Mammoth Lakes and just turned into the Park but the sun had already dipped below the Sierra Nevada horizon and, by the time I got to my hotel, it was dark. I checked into my room, opened up my cooler and ate a sandwich while I studied the Yosemite Guide that I picked up in the Lobby. I only had one day to see the place that John Muir dubbed “the grandest of all His special temples of Nature I was ever permitted to enter…. the sanctum sanctorum of the Sierras.” The next morning, after checking out of my hotel, I drove around the small mountain town of Mammoth Lakes. In the summer, it caters to outdoor enthusiasts including hikers, bikers and mountain climbers but, in the winter, it hosts skiers and snowboarders. It was pretty early and I had read that there was a Schat’s Bakery in town — a smaller version of the gigantic parent bakery located in Bishop, off CA Rte. -
California Water & Sierra Nevada Hydrology
- Adaptive management - California water & Sierra Nevada hydrology - SNRI & UC Merced Roger Bales Sierra Nevada Research Institute UC Merced Forest adaptive management: water 3 objectives: Measure changes in water quality & water budget in representative areas subjected to Framework/SPLATS treatment Estimate the impact of forest treatments on water quality, water budget & aquatic habitat at three levels: watershed, forest, bioregion Provide basis for continuing operational assessment of how Framework treatments will impact streams, water cycle & forest health Sierra Nevada Adaptive Management Program snamp.cnr.berkeley.edu Tasks: Water Quality & Quantity Field measurement program – before/after treatment – controls in parallel w/ treatment – stream temperature, turbidity, dissolved oxygen, electrical conductivity – stream stage/discharge, soil moisture – meteorology, erosion, soil temperature, snowpack, precipitation Modeling & spatial scaling – integrate observations using hydrologic model – estimate model parameters from satellite & ground data – extend impacts across hydrologic & watershed conditions – couple watershed, erosion, stream responses Sierra Nevada Adaptive Management Program snamp.cnr.berkeley.edu Tahoe NF catchments Hydrology focuses on 3 smaller catchments: − treatment − control − higher elevation, future treatment Same strategy in Sierra NF California’s water resources challenges: increasing pressure on mountain resources 1. Changing urban & agricultural water demand 2. Sea level rise 3. Reduction of average annual snowpack