Lower Lake, California Lower Lake, California Lower Lake (formerly Grantville) is a census-designated place (CDP) in the southern Clear Lake region of Lake County, in northern California. Lower Lake is also an Indian rancheria of the Koi Nation people. Lower Lake is located 4.5 miles (7.2 km) southwest of the City of Clearlake, and southeast of Kelseyville. It is at an elevation of 1371 feet (418 m). Lower Lake was at one point the county seat, the Lake County elections of 1867 were hotly contested with the seat moving between what is now the city of Lakeport and the town of Lower Lake,
Kachess Lake downstream and at a lower elevation than the original lake outlet. The intent of the lowered outlet works was to put all of the average annual runoff into service by adding an additional 76,000 acre feet of natural lake water. As a storage reservoir, Kachess Lake's active capacity is . The name Kachess comes from a Native American term meaning "more fish", in contrast to Keechelus Lake, whose name means "few fish". Kachess Lake Kachess Lake is a lake and reservoir along the course of the Kachess River in Washington state, US. The upper part of the lake, north of