The U.S. Forest Service and U.S. Geological Survey are preparing an Environmental Impact Statement on proposed oil exploration in the Cache Creek area of the Teton National Forest, near Jackson, Wyoming. This fishery study represents a portion of the EIS data gathering effort by the U.S. Forest Service. The objective of this study was to provide a complete evaluation of the fisheries that would be potentially impacted by the proposed oil development, primarily related to the construction of access roads to proposed drilling sites.