Trout Unlimited will develop a systematic and coordinated report on all possible fish migration barriers and entrainment issues. This report will provide a general overview of water use in the Lower Gros Ventre River between lower Slide Lake and the confluence with the Snake River, to help identify additional research needs. Much information exists, but it is in scattered locations among various agencies. This project will enable Trout Unlimited to compile and systematize the information in order to identify information and research gaps for future native trout management.