2024 Map of Thunderbolt Creek

A network of historical pathways and administrative routes, including the Continental Divide National Scenic Trl and the Bison - Blackfoot Trl, trace the ridgelines and valleys where water flows toward the Boulder River. Near the southern edge, Berkin Flat provides a rare area of level ground amidst the steep gulches of Alto Gulch and Finn Gulch, illustrating the difficult terrain that historically dictated movement through the mountains along the Powell and Jefferson county line.