ExecutiveOrdersEO
Proc 9394ProclamationObama · D Quiet signal

Proclamation 9394

Establishment of the Castle Mountains National Monument

President Obama used the Antiquities Act to establish the Castle Mountains National Monument in California, withdrawing approximately 20,920 federal acres from development and placing them under National Park Service management. The proclamation protects natural and cultural resources including wildlife corridors, groundwater systems, Native American sacred sites, and historic mining structures, while imposing a 3-year deadline for a management plan and conditions for eventual transfer of an adjacent mining area.

Federal Register Open PDF 81 FR 8365

Impact dates

  1. Earliest automatic transfer of Castle Mountain Mine Area to NPS based on 10-year no-mining condition

  2. Management plan due from Secretary of Interior

Key directives

  • Establish Castle Mountains National Monument on ~20,920 acres
  • Withdraw federal lands from entry, location, sale, mining, and mineral/geothermal leasing
  • Secretary of Interior to manage lands through National Park Service
  • Secretary to prepare management plan within 3 years with full public involvement
  • Prohibit all off-road motorized and mechanized vehicle use except emergency/authorized administrative purposes
  • Continue managing Castle Mountain Mine Area through BLM pending transfer conditions
  • Transfer Castle Mountain Mine Area to NPS upon Secretary's determination of mining termination/reclamation completion OR 10 years without commercial mining under approved plan
  • Protect Indian sacred sites and provide tribal access consistent with AIRFA and EO 13007
  • Ensure water resource availability for monument purposes in cooperation with state officials
  • Maintain military overflight and special use airspace authority

Who is ordered

Timeline

Immediate

  • Monument establishment effective upon proclamation
  • Federal lands withdrawn from entry, sale, mining, and mineral leasing
  • Off-road motorized/mechanized vehicle use prohibited
  • Jurisdiction of Castle Mountain Mine Area remains with BLM

Near term (90d)

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Long term

  • Management plan due within 3 years of proclamation (by February 12, 2019)
  • Potential transfer of Castle Mountain Mine Area to NPS upon completion of mining/reclamation OR after 10 years of no commercial mining activity (by February 12, 2026)

Risks & tensions

  • Mining industry opposition likely due to withdrawal of lands from mineral entry and leasing
  • Conditional transfer of Castle Mountain Mine Area creates uncertainty; actual transfer date depends on Secretary's discretionary determination or 10-year clock
  • Tribal access rights protected but scope of 'traditional cultural and customary uses' may require future negotiation
  • Groundwater management shared with state creates potential federal-state tension over water rights in arid region
  • Military overflight exemption may conflict with protection of 'natural soundscapes' emphasized in proclamation
Proclamation 9394: Establishment of the Castle Mountains National Monument · Executive Orders