1964 Map of Island Park Dam

About this map

Island Park Reservoir dominates this mid-1960s survey of Fremont County, showing the impounded waters of the Henrys Fork behind the Island Park Dam. The map details a landscape transitioning from traditional ranching to mid-century recreation, as evidenced by the mix of older landmarks like McCrea Ranch and several modern recreational sites such as McCrea Bridge Campground and Jackson Landing Campground. The geography is defined by the sharp descent from Thurmon Ridge toward the reservoir and the dramatic Box Canyon to the south. Notable hydrological features include the Coffee Pot Rapids on the river's upper reaches and the confluence of the Buffalo River. For those researching local history, the map provides precise locations for Gravel Pits and gaging stations, alongside the distinct residential footprint of I P Bills Island.