West Mojave Plan FEIR/S - Desert Managers Group

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purposes. Normally the BLM will authorize the requested amount of non-use on a short-termbasis. In some situations the BLM may temporarily authorize another qualified applicant tograze the amount of authorized non-use in an allotment, but this is seldom done.Grazing use of perennial vegetation in all allotments is expected to continue except wherethe permittee or lessee voluntarily relinquishes their lease or permit. Overall, livestockproducers have voluntarily reduced stocking rates for much of the 1990s, resulting in lesslivestock use than the lease or permit allows. Both cattle and sheep grazing have beenauthorized under existing biological opinions in desert tortoise habitat (see Appendix Q).Since 1992, BLM Barstow Field Office lessees with allotments classified as ephemeral/perennial have not requested, nor has grazing been authorized for, ephemeral forage ortemporary non-renewable (TNR) perennial forage. During the same period, lessees andpermittees in the BLM Ridgecrest Field Office with ephemeral/ perennial allotments haveroutinely requested ephemeral authorizations, and have requested and been authorized to useTNR perennial forage. The authorization of ephemeral sheep grazing is common in both areaswhen sufficient ephemeral forage production occurs, although the number of sheep has declinedover the last 10 years.Fewer range improvements have been installed in the last 10 years than in prior years.Installation of new improvements is based on a case-by-case analysis and available funding.Periodic and annual maintenance is required on existing facilities. Some range improvementsare located in designated wilderness areas, primarily on public lands administered by the BLMRidgecrest Field Office. Ongoing maintenance of existing improvements coupled with theaddition of new infrastructure has marginally increased demands for maintenance.The vast majority of grazing allotments is within habitat and/or designated critical habitatfor the desert tortoise. Table 3-44 lists the current grazing permits and leases within deserttortoise habitat in the planning area.Allotment Management Plans (AMPs) have been prepared for about 42 percent of theallotments. Most of the AMPs apply to Ridgecrest Field Office allotments.Table 3-45 presents information on each cattle and sheep grazing allotment. Appendix Oincludes a profile of each allotment, and a table detailing past livestock use of the allotment.Chapter 3 3-212
Grazing AllotmentsNOlanchaDarwinTunaweeLacey-Cactus-McCloudRudnickWalker PassSpangler HillsLava MountainsHansenCantilPilotKnobGoldstoneDoubleMountainWarrenAntelopeValleyBissellBoronShadowMountainsBuckhornCanyonMonolith-CantilGravel HillsHarperDryLakeMiddleSuperiorValleyWestValley WellStoddard MountainsEastOrd MountainJohnsonValleyCroneseLakeCadyMountainLegendCounty LinesHighwaysPlan BoundaryGrazing AllotmentsCattleSheepHorseCattle and SheepRoundMountainWhitewaterCanyonRattlesnakeCanyon10/14/04West Mojave Plan FEIR/SMap 3-18Scale: 1 : 1,750,0000 10 20 30Km0 10 20 30Miles
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CHAPTER THREEAFFECTED ENVIRONMENT3.
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The CDCA Plan assigns a “multiple
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Desert Tortoise Research Natural Ar
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closure to target shooting. Hunting
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percentage of public land ownership
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As of March 2004, BLM had acquired
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Ripley Joshua Tree Woodland: The st
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through “resource use” designat
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Significant Ecological Areas: There
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Wildlife and Wildflower Sanctuaries
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Mojave River Forks Regional Park: A
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oriented commercial uses are expect
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HCP would include mitigation measur
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3.1.3.12 City of RidgecrestThe City
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It is a goal of the town’s genera
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• Inyo California Towhee (April 1
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(i) The taking will be incidental;(
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handled, and number accidentally ki
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3.1.5 California Endangered Species
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Obtaining an Incidental Take Permit
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Monitoring: Monitoring is often the
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is so restrictive that project dela
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excess moisture. A minus 4 is consi
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Air BasinsN190I n y o C o395Ridgecr
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Federal PM10 Planning AreasN190Owen
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POLLUTANTOzone (O 3 )RespirablePart
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AIRBASINAIR QUALITYDISTRICTPOLLUTAN
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subtraction of transported ozone in
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The general soil information and ma
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The Marine Corps Ground Combat Cent
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The most permeable basin-fill depos
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Surface water was and is the major
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A relatively small number of introd
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freshwater or alkali wetlands, or o
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3.3.2 Desert Tortoise3.3.2.1 Regula
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progress toward meeting the overall
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“higher density” and “lower d
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several seasons (Esque 1994 in Aver
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Assistant District Manager Molly Br
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• Since 1975, federal land manage
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“52 mi 2 of higher density tortoi
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1984 Tortoise Range and Density Map
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Higher Density Tortoise Sign Count
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When data for the three lowest sign
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Occurrence of Tortoises Relative to
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Regional Declines in the Four DWMAs
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Tortoise Distribution within the Re
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Boarman (pers. comm., Nov 2002) has
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tortoises are either extirpated (La
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sites surveyed by LaRue between 199
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aseline data are lacking. Grasses p
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Canine Predators: This includes coy
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The spatial distribution of 12 of 1
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Predation Versus Scavenging of Juve
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Table 3-20Prevalence of Tortoises i
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(Jacobson et al. 1991, Brown et al.
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3.3.2.5.3 Older and Newer Die-off R
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Table 3-21Characteristics of Older
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Table 3-22Characteristics of Older
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of the Johnson Valley Open Area, an
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Distribution of Recreational and Re
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Tortoises and Burrows Crushed: Vehi
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TypeYearsSignCount98-99-01Distance2
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OHV Impacts to Soils: OHV use has r
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Rodman DWMA. There were no higher d
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of Dove Springs that has experience
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Both inside and adjacent to open ar
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3.3.2.6.6 Organized Competitive OHV
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3.3.2.7 Current Effectiveness of Ex
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Overall, one sees that 68% of the 3
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off regions discussed herein. Black
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ManixACECMojave fishhookcactusRainb
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Range of Mohave Ground SquirrelN190
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3.3.3.2.2 Seasonal ActivityThe MGS
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1996). As herbaceous annuals appear
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1998 Mohave Ground Squirrel Transec
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Finally, the 84% success rate was a
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LaRue characterized substrates at t
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There were no MGS occurrences in 28
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certain shrubs (e.g. winterfat) tha
Page 161 and 162: NAWS China Lake 1993). As discussed
Page 163 and 164: Cumulatively, one finds there to be
Page 165 and 166: Citing Bury and Luckenbach (1977),
Page 167 and 168: the MGS is restricted to about 7,00
Page 169 and 170: Habitat Management Plans (HMPs) wer
Page 171 and 172: Basic to the biology of bighorn she
Page 173 and 174: 3.3.6 Birds3.3.6.1 Bendire’s Thra
Page 175 and 176: 3.3.6.5 Golden EagleLife History: T
Page 177 and 178: The towhee recovery plan establishe
Page 179 and 180: Regulatory Status: Federal Endanger
Page 181 and 182: 3.3.6.15 Western Yellow-billed Cuck
Page 183 and 184: Other major threats are flood contr
Page 185 and 186: Population Status in the Planning A
Page 187 and 188: on the inaccessible mountain slopes
Page 189 and 190: 3.3.8.8 Kern BuckwheatLife History:
Page 191 and 192: Threats Affecting the Mojave Monkey
Page 193 and 194: 3.3.8.16 Red Rock PoppyLife History
Page 195 and 196: populations show intergradation wit
Page 197 and 198: 3.4.1.1 Regional EnvironmentIn tota
Page 199 and 200: Table 3-37Average Annual Units Cons
Page 201 and 202: 2002 SOUTHERN CALIFORNIAEMPLOYMENT
Page 203 and 204: TABLE 3-382000 CENSUS DEMOGRAPHIC C
Page 205 and 206: to undergo a dramatic reversal to t
Page 207 and 208: 3.4.1.5 Study Area Property Valuati
Page 209 and 210: The supply of private property in t
Page 211: ALLOTMENT NAME TYPE OF LIVESTOCK FO
Page 215 and 216: ALLOTMENT NAMEALLOTMENTACRESP. L. 1
Page 217 and 218: 3.4.3 Mineral Potential and Develop
Page 219 and 220: Mineral Potential, Active and Inact
Page 221 and 222: Mineral Potential, Active and Inact
Page 223 and 224: development based on the results of
Page 225 and 226: MANAGEMENT AREATable 3-46Potential
Page 227 and 228: A third item, yttrium (on the USBM
Page 229 and 230: the California Department of Conser
Page 231 and 232: Table 3-49 shows the number of mini
Page 233 and 234: produces about 75,000 tons per year
Page 235 and 236: Table 3-50Most Important Deposits B
Page 237 and 238: 3.4.3.5 Coolgardie MesaThe Coolgard
Page 239 and 240: Areas designated as regionally sign
Page 241 and 242: Recreationists engage in activities
Page 243 and 244: OPENAREADoveSpringsElMirageJawboneC
Page 245 and 246: cycle engine motorcycles in OHV rid
Page 247 and 248: One popular activity is dual sport
Page 249 and 250: Compliance With Regulations: Compli
Page 251 and 252: REGIONORCITYRidgecrestSanBernardino
Page 253 and 254: REGIONORCITYVictorville /AppleValle
Page 255 and 256: Rail: The West Mojave planning area
Page 257 and 258: Arterials: Arterials are routes wit
Page 259 and 260: Ridgecrest-Inyokern Sanitary Landfi
Page 261 and 262: approximately 3 miles south of the
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Trona-Agrus Transfer Station (SWIS
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The BLM is an agency of the U.S. De
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Route designations apply only to ro
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Utility Maintenance: Many powerline
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ACECNAME ANDNUMBERHarper Dry Lake(3
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SUBREGIONAmboyBighornCoyoteEastSier
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• All pipelines with diameters gr
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3.6.2 Energy Generation PlantsEnerg
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3.7 CULTURAL RESOURCES3.7.1 Archaeo
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seasonal movement from place to pla
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RIDGECREST FIELD OFFICEPROPERTY NAM
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ACECRose SpringFossil FallsLast Cha
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have been dated by radiocarbon and
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MYACENOZOICEPOCHTable 3-65Paleontol
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In the southern area, fossils of la
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At Twenty-Nine Palms, there is an u
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West Mojave Plan FEIR/S - Desert Managers Group

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