2015 Map of Letterbox Hill

About this map

Modoc National Forest dominates this high-elevation landscape in Lassen County, where a complex network of water management features reveals the region's reliance on seasonal runoff. Numerous storage sites like Myers Reservoir, Cary Reservoir, and McClelland Reservoir are distributed across the terrain, connected by named drainages such as Willow Cr and Butte Cr. The topography is defined by distinct volcanic or geologic rises, including Letterbox Hill, Lonkey Hill, and Little Gold Hill, interspersed with expansive flats like Whit Flat and Packwood Flat. This network of ranch roads and forest spurs, such as Anderson Ranch Rd and Preston Canyon Rd, facilitates access to remote springs and lakes, including Myer Spring and Snider Lake. The presence of Windmill Flat suggests historically developed livestock watering points within this managed forest environment.