Rock Creek-Butter Creek Grasslands, COA 155

An aerial view of the Rock Creek - Butter Creek Grasslands COA in the Columbia Plateau Ecoregion. Photo Credit: Steve Cherry, ODFW

This is the largest COA within the Columbia Plateau Ecoregion extending from Rock Creek to Butter Creek, totaling 809 square miles.

COA ID: 155

Local Conservation Actions and Plans

Potential Partners

Special Features


  • Contains significant intact foothill grasslands and rock creek drainage
  • Important mule deer and elk winter range area
  • Provides habitat for Golden eagle nesting areas and other sensitive species

Previously Associated With

  • 2006 COA ID CP-08 (Pendleton-Heppner grasslands)

Protected Areas

  • Prineville District


Strategy Habitats

Strategy Species