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Mojave National Preserve Management Plan for Developed

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Mojave National Preserve Management Plan for Developed Mojave National Preserve—Management Plan for Developed Water Resources (Table 4). Figure 3 and Figure 4 outline the sequence and transition process, and Table 5 describes the implementation actions under each alternative. Proposed sites for relocated guzzlers would be determined based on accessibility for maintenance and proximity to known bighorn populations and habitat. Probable relocation sites are shown in Figure 4, which illustrates the implementation scenario for Alternative 3. The existing conditions include all the guzzlers currently located in wilderness (No Action). The transition includes all existing, new, and relocated guzzlers that would be monitored for impacts and use. The final condition illustrates a successful implementation of Alternative 3, with a total of 7 guzzlers (2 retained, 2 relocated, and 3 new). Table 4. Priorities for Big Game Guzzler Actions under Each Action Alternative Alternative 3 Alternative 2 Alternative 4 (Preferred Alternative) 1. Kelso – retain and maintain 1. Old Dad – rebuild and repair as 1. Old Dad – rebuild and repair as 2. New Kerr and New Vermin – build needed needed and monitor discovery and use; 2. Kelso – retain and maintain 2. Kelso and Piute – retain and collar Piute ewes 3. New Kerr and New Vermin – build maintain 3. Clark – continue to monitor for an and monitor discovery and use; 3. New Kerr and New Vermin – build additional year before disabling collar Piute ewes new guzzlers and monitor and removal 4. Piute North – build and monitor discovery and use; collar Piute 4. Vontrigger – build and monitor discovery and use ewes discovery and use in coordination 5. Clark – continue to monitor for an 4. Clark – continue to monitor for an with monitoring, disabling, and additional year before disabling additional year before disabling removal of Piute and removal and removal 5. Ginn Spring – install new water 6. Vontrigger – build and monitor 5. Vontrigger – build and monitor source discovery and use in coordination discovery and use 6. Kerr and Vermin – monitor for with monitoring, disabling, and 6. Ginn Spring – build and monitor transition to relocated guzzlers, removal of Piute discovery and use disable, and remove 7. Ginn Spring – build and monitor 7. Kerr and Vermin – monitor for 7. Old Dad – monitor use and discovery and use transition to relocated guzzlers, transition to New Kerr and New 8. Kerr and Vermin – monitor for disable, and remove Vermin; disable, monitor, and transition to relocated guzzlers, remove disable, and remove 8. Piute – monitor transition to 9. Piute –monitor transition to Piute Vontrigger, disable, and remove North and Vontrigger, disable, and remove For guzzler removals and relocations, the primary approach would be to install a new/relocated water source and to keep both guzzlers in place while bighorn discover and transition to using the new water source. Monitoring would occur for as long as is needed to document the discovery and transition of sheep to the new site. As monitoring indicates and after bighorn have discovered and use the new/relocated source, the existing guzzler would be disabled for an extended period while monitoring of bighorn use continues. Once monitoring has demonstrated that bighorn have successfully adapted to the new site, the old guzzler infrastructure would be removed and the site rehabilitated. If monitoring indicates that unanticipated or unacceptable impacts on bighorn sheep populations are occurring, the NPS may reinitiate use of the old disabled guzzler. (Once they have been physically removed from wilderness, reestablishing guzzlers at old sites would require new analysis and approvals under NEPA and the Wilderness Act. Such an action is not anticipated in this plan and would be pursued as a last resort to mitigate unforeseen circumstances.) Mojave National Preserve 33 to Las Vegas to Las Vegas Kingston W E H a E S s G h T I N G G N Big Game Guzzlers and A M H R A L Y A N R I A N Bighorn Movement H Clark Mountain RRR D G G R U " U A 95 Y Corridors O Yates Well S O N C M L G U 1 IVANPAH L E K Mojave National Preserve L 15 LAKE U (dry) C Water Resources Management Plan and Environmental Assessment c M M M M sh M 164 L a HIL W Searchlight WK on MOH A at Nipton W he Mojave National Preserve boundary W P I Salton 164 U M E E E E E T Bighorn sheep habitat patches (Creech et al. 2014) Sea I G N E N E h R Y s A A a R L W E s L 5 H S Big game guzzler g AAA V in CCC IL r ES L p M N A S 127 ll L u I B L New water source A E Y V S T Springs used by bighorn A N L M U Halloran Springs GinnL Spring S N Bighorn migration corridor (Creech et al. 2014) E H O I h A W Y s MMM A i a P ll h CASTLE Restorable bighorn migration corridor o as T w W W N Willow N MOUNTAINS e (Creech et al. 2014) t SILVER A U u Spring NATIONAL i LAKE V P O MONUMENT National Park Service wilderness (dry) I M 15 E Cal Nev Ari Kessler L Paved road Spring K T CIMCICIMMAMA RRR S O Y A Unpaved 2-wheel drive road Deer DDOMDOOMMEMEEE CCC 7 h W Piute North s Spring E a N P W Baker I NEVADA nk CALIFORNIA Unpaved 4-wheel drive road a U T ck Keystone la T B Spring E Mojave Road 4-wheel drive road Cima R Desert wash PIPPININTOTOTO Piute A CINCIC NNDDERDDEERR COCOONNNEE Palm N Gardens 163 LAVLALLAVAAAVAVAA BBE EDSEDDS S " LSL G SODA LLLLSL L A N F A I R LAKE IL E HHILHILL V A L L E Y Marl h (dry) s GROGROOTTOTTT O 2 a 95 MARMAMARRRLL Spring HILHILLS Vermin W o Rock Zzyzx s MOUMOMOOUUNNTATAAAINININSNS l sh e Wa Spring Spring K Cedar ROUO NDD Zzyzx " VALV LEYY Piute Old Dad Spring " " M Habitat Patches Kelso AC O R GGEGG P M TRITRTRIT I O Hackberry N U LS LS U N GOLGOLD O VVONHILLSHIL Clark Mountain Spring T 1 TTT OD N S Vontrigger E " S M D O Spring U KerrE N Old Dad/Kelso V T 2 A W Vontrigger Spring I 6 I a L N t F S s E S o N V Kelso Depot n N A Granite Mountains W 3 Information Center E P a R L B s L l h L ac V k E AAA 4 A C L Y a Y 4 Providence Mountains n L G y E Co o Y t n R to n Cornfield w W K O o Mescal/Ivanpah Range elso Spring a 5 Wash o s U h d N W a D s Woods/Hackberry Mountains h 6 D S E Goffs e E Foshay N Y vi U ls D NC Spring Piute/Castle Mountains Pla SO E 7 ygr EL ENCENE oun K L d DED S W L IDIDENCE L ash L I VID VIDVIV A H R OVO V E B RO N 40 L N PPRPRO I N Quail E F F F F D 3 Spring H R I H L E GRAGRG RAR AANNITNINITEITTTEE o m P Fenner e P r MOUMOM OUOOUNUUNNTANNTTAT AIA ININSNNSS I W L S a s O C N h LLL I D D A A D T M N O S U N N I U T A Budweiser TATAIN I 40 N O N S Spring UN MO M ER M PPER Essex E CCLIPCLICLLIP T U Ludlow I 40 P 40 MIDM DDDLE HIHILLILLSLSS N 01234 Miles to Barstow Non-wilderness Wilderness Existing Condition • Guzzler in wilderness Non-wilderness Wilderness Transition - Step 1 • New guzzler outside of wilderness • Two guzzlers during monitoring period • Monitor bighorn use for several years Non-wilderness Wilderness Transition - Step 2 • Bighorn documented to use new guzzler • Shut off old guzzler • Monitor bighorn transition Non-wilderness Wilderness Transition - Step 3 • Bighorn only use new guzzler • Remove old guzzler • Continue monitoring If monitoring indicates that the guzzler transition is not successful, or if severe impacts on bighorn are evident, each step can be reversed to ensure that impacts on bighorn populations are minimal. Guzzler Transition Sequence Clark Mountain Existing big game guzzler Existing big game guzzler on during transition Big game guzzler removed Piute New water source location Vermin Big game guzzler relocation site Old Dad Kelso Kerr Existing Clark Mountain Ginn Spring Piute North Piute New Vermin Vermin Kelso Old Dad Vontrigger Spring Kerr Transition Ginn Spring Piute North New Vermin Kelso Old Dad New Kerr Vontrigger Spring Implementation sequence Final Condition for Alternative 3 shown Mojave National Preserve—Management Plan for Developed Water Resources Table 5. Implementation Actions for Big Game Guzzlers Alternative 3 No Action Alternative 2 Alternative 4 (Preferred Alternative) Manage water developments to Minimize water developments in support native species conservation Manage water resource to augment Continue current, ad hoc management wilderness while strategically using Objective and population stability while reducing native wildlife habitat and restore and maintenance activities water developments to conserve the number of water developments in connectivity native wildlife populations wilderness Existing Guzzlers Filled every year or so depending on Common to All Action Alternatives: precipitation by driving about two Retain Kelso miles into wilderness on an existing • Repair as needed two-track road Can be filled only by helicopter; repair Remove Retain Retain of valves, tanks, pipes, drinker, and • Shut off water and initiate Repair as needed Same as Alternative 2 Old Dad other parts done by dropping off monitoring equipment from helicopter; volunteers • If monitoring shows bighorn use hike to site New Kerr and New Vermin, remove Common to All Action Alternatives: Filled every year or so depending on Relocate precipitation by driving about one mile Kerr • Identify suitable non-wilderness site into wilderness on an existing two- • Initiate relocation process track road • Once new guzzler is established, remove Common to All Action Alternatives: Filled every year or so depending on Relocate precipitation by driving on a cherry- Vermin • Identify suitable non-wilderness site stemmed road and then using a long • Initiate relocation process hose • Once new guzzler is established, remove Common to All Action Alternatives: Clark Requires very little to no repair Remove • Dismantle
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