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Interim Report for Chemehuevi Wash Off-Highway Vehicle Area, CA

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Interim Report for Chemehuevi Wash Off-Highway Vehicle Area, CA United States In cooperation with Department of United States Agriculture Department of the Interim Report for Interior, Bureau of Land Management, and the Soil Survey of Mojave Desert Resource Conservation Natural District Chemehuevi Wash Resources Conservation Service Off-Highway Vehicle Area, Part of the Desert Area, California i How To Use This Soil Survey General Soil Map The general soil map, which is a color map, shows the survey area divided into groups of associated soils called general soil map units. This map is useful in planning the use and management of large areas. To find information about your area of interest, locate that area on the map, identify the name of the map unit in the area on the color-coded map legend, then refer to the section General Soil Map Units for a general description of the soils in your area. Detailed Soil Maps The detailed soil maps can be useful in planning the use and management of small areas. To find information about your area of interest, locate that area on the Index to Map Sheets. Note the number of the map sheet and turn to that sheet. Locate your area of interest on the map sheet. Note the map unit symbols that are in that area. Turn to the Contents, which lists the map units by symbol and name and shows the page where each map unit is described. The Contents shows which table has data on a specific land use for each detailed soil map unit. Also see the Contents for sections of this publication that may address your specific needs. ii This soil survey is a publication of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (formerly the Soil Conservation Service) has leadership for the Federal part of the National Cooperative Soil Survey. Major fieldwork for this soil survey was completed in 2004. Soil names and descriptions were approved in 2005. Unless otherwise indicated, statements in this publication refer to conditions in the survey area in 2004. This survey was made cooperatively by the Natural Resources Conservation Service and the Bureau of Land Management and Mojave Desert Resource Conservation District. Soil maps in this survey may be copied without permission. Enlargement of these maps, however, could cause misunderstanding of the detail of mapping. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The United States Department of Agriculture (USDA) prohibits discrimination in all of its programs on the basis of race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, and marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact the USDA’s TARGET Center at 202-720-2600 (voice or TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326W, Whitten Building, 14th and Independence Avenue SW, Washington, DC 20250-9410, or call 202-720-5964 (voice or TDD). USDA is an equal opportunity provider and employer. Cover: Granitic Fan Remnant 4-6" p.z. ecological site on the Riverbend soil in detailed soil map unit 2010, in the northwest corner of the survey area. (Photograph by Leon Lato, Natural Resources Conservation Service.) Additional information about the Nation’s natural resources is available on the Natural Resources Conservation Service home page on the World Wide Web. The address is http://www.nrcs.usda.gov. iii Contents How To Use This Soil Survey .................................. i 2400—Carrizo-Carrwash association, 2 to 8 Contents ................................................................. iii percent slopes ............................................. 29 How This Survey Was Made.................................... 1 2401—Carrizo-Carrwash association, eroded, General Soil Map Units........................................... 3 2 to 8 percent slopes ................................... 31 Soils on Fan Piedmonts........................................ 3 Use and Management of the Soils ....................... 33 1. Riverbend-Carrizo-Chemehuevi-Garywash ..... 3 Interpretive Ratings ............................................ 33 2. Carrizo, frequently flooded-Carrwash .............. 4 Rating Class Terms ........................................ 33 Soils on Hills ........................................................ 5 Numerical Ratings .......................................... 33 3. Goldroad-Stormjade-Whipple .......................... 5 Land Capability Classification............................. 33 4. Sunrock ......................................................... 6 Major Land Resource Area ................................. 34 Detailed Soil Map Units .......................................... 7 Rangeland .......................................................... 34 1200—Goldroad very gravelly sandy loam, Vegetation ...................................................... 35 15 to 50 percent slopes .................................. 8 Dominant Ecological Sites ............................. 35 1210—Stormjade-Goldroad complex, 8 to 50 Effects of Off-Highway Vehicles on percent slopes ............................................... 9 Ecological Sites ........................................ 36 1211—Stormjade-Whipple complex, 8 to 50 Burrowing Habitat for Desert Tortoise ................. 41 percent slopes ............................................. 10 Urban Uses and Recreation ................................ 42 1400—Sunrock complex, 8 to 50 percent Camp Areas ................................................... 42 slopes .......................................................... 12 Picnic Areas .................................................. 43 1401—Sunrock-Cheme family association, Playgrounds ................................................... 44 8 to 50 percent slopes .................................. 13 Paths and Trails .............................................. 44 1402—Sunrock-Cheme family-Rock outcrop Off-Road Motorcycle Trails ............................. 45 association, 8 to 50 percent slopes.............. 14 Lawns, Landscaping, and Golf Fairways ........ 45 1500—Carrizo extremely gravelly fine sandy Engineering ........................................................ 46 loam, 2 to 8 percent slopes.......................... 16 Building Site Development ............................. 46 1501—Carrizo very gravelly loamy sand, Sanitary Facilities ........................................... 49 30 to 75 percent slopes ................................ 17 Construction Materials ................................... 54 1502—Carrizo-Badland-Riverbend association, Water Management ........................................ 55 8 to 75 percent slopes .................................. 18 Soil Properties ...................................................... 57 1503—Carrizo association, 2 to 8 percent Engineering Index Properties ............................. 57 slopes .......................................................... 19 Physical Properties ............................................ 58 2000—Riverbend very gravelly fine sandy Chemical Properties ........................................... 59 loam, 8 to 30 percent slopes ........................ 21 Water Features ................................................... 60 2001—Riverbend-Chemehuevi association, Soil Features ...................................................... 60 2 to 30 percent slopes .................................. 22 Classification of the Soils .................................... 63 2010—Chemehuevi-Carrizo-Riverbend Badland and Taxonomic Units and Their complex, 2 to 30 percent slopes .................. 23 Morphology ......................................................... 63 2011—Cololag gravelly silt loam, 1 to 4 Badland .............................................................. 63 percent slopes ............................................. 25 Carrizo Series ..................................................... 64 2020—Snaggletooth-Carrizo association, Carrwash Series ................................................. 65 1 to 8 percent slopes ................................... 25 Cheme Family .................................................... 66 2030—Garywash gravelly fine sandy loam, Chemehuevi Series ............................................ 66 4 to 15 percent slopes .................................. 27 Cololag Series .................................................... 69 2031—Garywash-Chemehuevi complex, Garywash Series ................................................ 70 2 to 8 percent slopes ................................... 28 Goldroad Series .................................................. 73 iv Riverbend Series ................................................ 74 Table 6a.—Building Site Development Snaggletooth Series ........................................... 75 (Part 1) ....................................................... 123 Stormjade Series ................................................ 77 Table 6b.—Building Site Development Sunrock Series ................................................... 78 (Part 2) ....................................................... 127 Whipple Series ................................................... 79
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