West Mojave Plan FEIR/S - Desert Managers Group

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JURISDICTIONInyo Co.(Total Acreage)Kern Co.(Total Acreage)Kern Co.(Excluding Cities)Los Angeles Co.(Total Acreage)Los Angeles Co.(Excluding Cities)Riverside Co.(Total Acreage)San Bernardino Co.(Total Acreage)San Bernardino Co.(Excluding Cities)Table 3-1Acreage Summary by JurisdictionPRIVATE STATE LAND MILITARY BLM MAN- OTHER OTHER TOTALLAND (SUBDIVIDED) LAND AGED LAND FEDERAL PUBLIC ACREAGE30,057 12,658 – SLC 456,164 332,044 9 - NPS 174 831,221116 - USFS757,959 2,076 - SLC287,227 505,093 1,720 - USFS 1,568,64481 - CDFG14,489 – Parks593,766 [same] 281,577 494,306 [same] 1,388,014610,959 38 – SLC53,547 7,226 377 - USFS 684,60212,454 – Parks464,487 [same] 47,630 7,138 [same] 532,1259,231 2,784 – SLC10 – Parks1,621,024 53,503 – SLC3,861 - CDFG213 – Parks1,383,188 53,105 - SLC[same for others]41,815 208,170 - NPS 57 262,0661,870,508 2,377,671 84,510 – NPS91 - USFS167 - Tribal1,858,185 2.368,559 84,500 - NPS90 - USFS912 6,012,511807 5,748,7072 - TribalTulare Co. 1 25 26Adelanto (SB) 33,343 91 514 33,949Apple Valley (SB) 45,464 43 – SLC 1,347 59 46,912Barstow (SB) 19,027 40 – SLC 4,061 2,281 25,407California City (K) 84,519 4,757 89,276Hesperia (SB) 42,322 955 68 1 43,385Lancaster (LA) 60,592 60,592Palmdale (LA) 57,545 5,806 88 63,439Ridgecrest (K) 6,103 4,972 1,163 12,238Twentynine Palms (SB) 31,802 2,146 3,502 8 37,623Victorville (SB) 41,699 38 – SLC 5,030 346 47 47,160Yucca Valley (SB) 24,176 277 – SLC 1,052 2 25,508Total Acreage 3,029,23071,059 – SLC27,166 -Parks3,943 – CDFG2,667,445 3,263,874292,689 – NPS2,356 - USFS167 – Tribal1,143 9,359,070Chapter 3 3-2
The CDCA Plan assigns a “multiple use class” designation to each parcel of public land,and provides land use and management guidelines for each class. These classes include:• Class C – controlled use, that is, wilderness areas.• Class L -- limited use, protecting sensitive, natural, scenic, ecological, and culturalresource values. Public lands designated as Class L are managed to provide for generallylower-intensity, carefully controlled multiple use of resources, while ensuring thatsensitive values are not significantly diminished.• Class M -- moderate use, providing for a controlled balance between higher intensity usesand resource protection.• Class I -- intensive use, providing for concentrated use of lands and rresources to meethuman needs.Within the western Mojave Desert, 457,721 acres are designated Class C, 1,269,313 acres ClassL, 877,042 acres Class M and 378,467 acres Class I. About 281,331 acres are unclassified.The CDCA Plan also adopted 12 “plan elements.” Each element provides desert-wideplanning decisions that focus on a major resource or issue of public concern. Management ofsensitive plant and animal species, including the designation of BLM crucial habitat and habitatmanagement areas, is provided by the wildlife element. Procedures for establishing a motorizedvehicle access network are set forth in the motorized vehicle access element.3.1.1.2 Areas of Critical Environmental ConcernThirty areas of critical environmental concern have been established by the BLM withinthe western Mojave Desert. These were designated by the 1980 CDCA Plan or added bysubsequent amendments to that plan. Specific management plans have been prepared for most ofthese areas. The ACECs that would be affected by the West Mojave Plan are described below 1 .Afton Canyon (4,726 acres): This ACEC protects a sensitive Mojave River ripariancommunity and the scenic canyon in which it is located. An Afton Canyon Natural Areamanagement plan (1989) was prepared in cooperation with the CDFG under the Sikes Act andcovers a larger area than the ACEC. The plan protects the ACEC and the adjacent desert habitatin the Cady Mountains, which is occupied habitat for bighorn sheep and contains nest sites forprairie falcon and golden eagle. Visitor facilities include two campgrounds, an equestriancampground, the Mojave Road, and interpretative signs and kiosks.1 The West Mojave Plan would not affect the following ACECs: Amboy Crater, Bedrock Springs, BigMorongo Canyon, Soggy Dry Lake Creosote Rings, Upper Johnson Valley Yucca Rings and Whitewater Canyon.Chapter 3 3-3
Page 1: CHAPTER THREEAFFECTED ENVIRONMENT3.
Page 5 and 6: Desert Tortoise Research Natural Ar
Page 7 and 8: closure to target shooting. Hunting
Page 9 and 10: percentage of public land ownership
Page 11 and 12: As of March 2004, BLM had acquired
Page 13 and 14: Ripley Joshua Tree Woodland: The st
Page 15 and 16: through “resource use” designat
Page 17 and 18: Significant Ecological Areas: There
Page 19 and 20: Wildlife and Wildflower Sanctuaries
Page 21 and 22: Mojave River Forks Regional Park: A
Page 23 and 24: oriented commercial uses are expect
Page 25 and 26: HCP would include mitigation measur
Page 27 and 28: 3.1.3.12 City of RidgecrestThe City
Page 29 and 30: It is a goal of the town’s genera
Page 31 and 32: • Inyo California Towhee (April 1
Page 33 and 34: (i) The taking will be incidental;(
Page 35 and 36: handled, and number accidentally ki
Page 37 and 38: 3.1.5 California Endangered Species
Page 39 and 40: Obtaining an Incidental Take Permit
Page 41 and 42: Monitoring: Monitoring is often the
Page 43 and 44: is so restrictive that project dela
Page 45 and 46: excess moisture. A minus 4 is consi
Page 47 and 48: Air BasinsN190I n y o C o395Ridgecr
Page 49 and 50: Federal PM10 Planning AreasN190Owen
Page 51 and 52: 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
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NAWS China Lake 1993). As discussed
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Cumulatively, one finds there to be
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Citing Bury and Luckenbach (1977),
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the MGS is restricted to about 7,00
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Habitat Management Plans (HMPs) wer
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Basic to the biology of bighorn she
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3.3.6 Birds3.3.6.1 Bendire’s Thra
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3.3.6.5 Golden EagleLife History: T
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The towhee recovery plan establishe
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Regulatory Status: Federal Endanger
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3.3.6.15 Western Yellow-billed Cuck
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Other major threats are flood contr
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Population Status in the Planning A
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on the inaccessible mountain slopes
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3.3.8.8 Kern BuckwheatLife History:
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Threats Affecting the Mojave Monkey
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3.3.8.16 Red Rock PoppyLife History
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populations show intergradation wit
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3.4.1.1 Regional EnvironmentIn tota
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Table 3-37Average Annual Units Cons
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2002 SOUTHERN CALIFORNIAEMPLOYMENT
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TABLE 3-382000 CENSUS DEMOGRAPHIC C
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to undergo a dramatic reversal to t
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3.4.1.5 Study Area Property Valuati
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The supply of private property in t
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ALLOTMENT NAME TYPE OF LIVESTOCK FO
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Grazing AllotmentsNOlanchaDarwinTun
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ALLOTMENT NAMEALLOTMENTACRESP. L. 1
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3.4.3 Mineral Potential and Develop
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Mineral Potential, Active and Inact
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Mineral Potential, Active and Inact
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development based on the results of
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MANAGEMENT AREATable 3-46Potential
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A third item, yttrium (on the USBM
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the California Department of Conser
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Table 3-49 shows the number of mini
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produces about 75,000 tons per year
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Table 3-50Most Important Deposits B
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3.4.3.5 Coolgardie MesaThe Coolgard
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Areas designated as regionally sign
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Recreationists engage in activities
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OPENAREADoveSpringsElMirageJawboneC
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cycle engine motorcycles in OHV rid
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One popular activity is dual sport
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Compliance With Regulations: Compli
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REGIONORCITYRidgecrestSanBernardino
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REGIONORCITYVictorville /AppleValle
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Rail: The West Mojave planning area
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Arterials: Arterials are routes wit
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Ridgecrest-Inyokern Sanitary Landfi
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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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