2021 Map of Halls Canyon

About this map

The Pit River flows across the northern edge of this high-desert landscape, cutting through a region defined by complex volcanic geology and extensive water resources within the Modoc National Forest. This 2021 survey reveals a territory where narrow gulches and broad flats, such as Stone Coal Valley and Miller Flat, provide vital grazing and timber land. The terrain is marked by prominent volcanic features like Black Butte and Rattlesnake Butte, while the drainage network of Dutch Flat Creek and Halls Canyon shapes the descent toward the southern Big Valley. Numerous named water sources, including Quaking Aspen Spring and Halls Springs, point to the critical role of groundwater in this arid part of Modoc County. The mapping of Forest Service roads like Stone Coal illustrates the modern infrastructure used to navigate the ridges and canyons that define this corner of the state.