2020 Map of Dunn Basin

About this map

The Morgan settlement serves as the primary landmark in this interior portion of Idaho, situated near the crossing of the Blackfoot River. The landscape is defined by the hydrologic divide between the Blackfoot River and the Portneuf River, which meanders through the southwestern corner of the quadrangle. The namesake Dunn Basin occupies the central northern territory, flanked by a network of seasonal drainages including Supon Cr and Deadman Cr. Transport through this undulating terrain relies on established routes such as Paradise Rd and the Portneuf Presto Trail Rd, which navigate the various ridgelines and creek bottoms. At the border of Bingham and Caribou Counties, the Morgan Bridge provides a critical connection over the river, illustrating the localized infrastructure supporting the high-elevation ranching and watershed management of the region.