2020 Map of Calderwood Reservoir

About this map

Warner Valley defines this high-desert basin in Lake County, where water management and seasonal hydrology dictate the character of the landscape. The western half of the map is dominated by the sprawling wetlands and intermittent waters of the valley floor, including the southern reaches of Crump Lake and the northern edge of Greaser Lake. These shallow water bodies are central to the region's geography, providing a sharp contrast to the steep, rising terrain to the east. Calderwood Reservoir and Greaser Reservoir anchor the hydraulic network, while smaller features like Fisher Lake and Fish Lake are tucked into the higher elevations. The remote nature of this area is reflected in its limited infrastructure, primarily represented by Co Hwy 3-15 and Fish Cr, making it a clear study in the vast, open-range topography typical of the Oregon outback.