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US Army Corps of Engineers
Omaha District Website
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Home / Missions / Regulatory Program / Montana / EA - Upper Yellowstone River

Montana Regulatory Pages

  • Nationwide Permits
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  • EA - Upper Yellowstone River

Upper Yellowstone River - Environmental Assessment

The  items in this first section are publications regarding the Upper Yellowstone River Special Area Management Plan and have been placed in the U.S. Army Corps of Engineers Digital Library.

  • Final Environmental Assessment, FONSI, and Selected Alternative
  • Montana Stream Mitigation Procedure Upper Yellowstone River SAMP SRMZ Supplement - Public Notice
  • Final Environmental Assessment and Finding of No Significant Impact for the Upper Yellowstone River SAMP (April 2011)
  • Draft Environmental Assessment for Upper Yellowstone River SAMP
  • Frequently Asked Questions about the Upper Yellowstone River SAMP Process  

Summary of studies supporting cumulative effects analysis of Upper Yellowstone River channel modification

  • (USGS Open-File Report 2004-1442)
  • Current FEMA Issued Flood Maps
  • Task Force Research Publications
  • Governor's Upper Yellowstone River Task Force
  • Channel Migration Zone (CMZ) Maps - Yellowstone River

 Appendices of the Upper Yellowstone River SAMP - Final Environmental Assessment

  • Appendix A - Comments and Corps' Responses
  • Appendix B - Development of the SRMZ and SRMZ Maps
  • Appendix C - Summary of Other Alternatives
  • Appendix D - Environmental Effects of the Preferred Alternative
  • Appendix E - Compliance with Environmental Laws and Regulations
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This is the official public website of the Omaha District, U.S. Army Corps of Engineers. For website corrections, write to dll-cenwo-pao@usace.army.mil

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