The Inner North Coast Ranges occur along the east slope of the outer Northern California Coast Ranges. The term inner is a reference to the greater distances of the mountain ranges from the Pacific Ocean, compared to the outer ranges that are nearer to that ocean, and often larger. Geography The inner ranges of mountains and hills run from near Anderson, California at south end of the High North Coast Ranges, southwards to west of the Russian River. Ecology Willis Linn Jepson was one of the first to describe the flora of the Inner North Coast Ranges. Jepson noted the presence of Yellow Pine (Pinus ponderosa ) and Sugar Pine (Pinus lambertiana ) species. See also Inner Coast Ranges California Coast Ranges Pinus classification Index: Natural history of the California Coast Ranges References Willis Linn Jepson. 1909. The trees of California, 228 pages, Published by Cunningham, Curtis & Welch Line notes External links California Coast Ranges Landforms of Tehama County, California Mountain ranges of Glenn County, California Mountain ranges of Butte County, California Mountain ranges of Northern California