1964 Map of Hillsboro

About this map

Hillsboro stands as a focal point near the northern reaches of the Bighorn Canyon Yellowtail Reservoir in this mid-1960s survey. The landscape is defined by the dramatic winding path of the Bighorn River, which carves through deep canyons and creates prominent landforms like Barrys Island. This era captures the region shortly after the formation of the Bighorn Canyon National Recreation Area, showing a transition from traditional land use to a managed wilderness. Significant geological and archaeological interest is marked by Bighorn Caverns and Horse Thief Cave, alongside intriguing terrain features such as the Devils Playground and Natural Corrals. The map also delineates the Crow Indian Reservation Boundary and the state line between Montana and Wyoming, illustrating how political and cultural borders intersect with the complex topography of Garvin Basin.