2011 Map of Calderwood Reservoir

About this map

Greaser Reservoir and Twentymile Slough dominate the southern drainage of this Lake County landscape, illustrating a complex hydrological system of basins and seasonal wetlands. The 2011 survey details a territory defined by its water storage and natural catchments, where the Calderwood Reservoir and Greaser Lake sit as prominent landmarks among various smaller bodies like Fisher Lake and Fish Lake. The presence of Deep Creek and Fish Creek underscores the importance of these riparian corridors in an otherwise arid region of Oregon. Transportation is limited to a few arterial routes, most notably County Hwy 3-15, which skirts the western edge of the basin. This map serves as an essential record of the water levels and geographic positioning of these features before more recent climatic shifts affected the high desert’s lake systems.