Streams Stream Study and Delineation Sullivan Creek, Pend Oreille County, WA Mountain stream mapping and inventory. Spawning gravel-cobble installation in False Bay Creek, San Juan Island, WA. Post installation of imported spawning gravels, and resumption of creek flows, False Bay Creek, San Juan Island, WA. Threespine stickleback residing in False Bay Creek. (Click on any image to enlarge)