2013 Map of Henry

About this map

The Blackfoot Reservoir dominates this high-altitude Caribou County landscape, where the waters surround a chain of landforms including Buck Island, Sheep Island, and Gull Island. The settlement of Henry sits just east of the shoreline, serving as a focal point for the surrounding Long Valley ranching and mountain country. The terrain is marked by significant geothermal and volcanic activity, evidenced by the expansive Blackfoot Lava Field to the south and numerous named water sources like Gaston Beatty Spring, Rosie Spring, and Warm Spring. Notable elevations like Crater Mtn and Camp Peak rise above the basin, while the curiously named Robbers Roost sits along the Id-34 corridor. This survey illustrates the intricate drainage system feeding the reservoir, primarily through Meadow Creek and Collett Cr, which carve through the high flats and ridges of the southeastern Idaho territory.