1964 Map of Island Park Dam

About this map

Island Park Reservoir dominates this high-altitude landscape, its waters held back by the Island Park Dam and regulated by a Gaging Station and several spillways. Surveyed in the early 1960s, the map reveals a region centered on recreational infrastructure and water management within the Targhee National Forest. The Henrys Fork flows through the center of the sheet, carving through Box Canyon and tumbling over Coffee Pot Rapids. The development of the shoreline is evident through established points like McCrea Ranch and I P Bills Island, while numerous public sites such as Jackson Landing Campground and Buttermilk Campground dot the banks. Evidence of local industry appears in scattered Gravel Pits, likely supporting the maintenance of the reservoir and forest roads such as the Blue Creek Jeep Trail.