1970 Map of Pegram Creek

About this map

The Bear Lake Plateau dominates this 1970 landscape, straddling the state line where Idaho and Utah meet. This high-altitude terrain is defined by a series of deep drainages including Mahogany Canyon, Cooley Canyon, and Trastrum Hollow, which funnel seasonal waters toward the Bear Lake basin. The map reveals an area utilized for resources and transport rather than dense settlement, evidenced by a network of jeep trails, a pipeline, and scattered industrial sites. Industrial and agricultural infrastructure is present in the form of multiple storage bins, a drill hole, and a quarry. Water sources are critical in this arid upland, with numerous named springs appearing alongside seasonal runs like Pine Creek and Horse Creek, providing essential landmarks for local ranching and surveying history.