Lake Elsinore is bordered by the Elsinore Mountains to the west, which are a part of the larger Santa Ana Mountain Range, and receive a few inches of snowfall a few days each year. Included in the Santa Ana Mountains is the Cleveland National Forest and the community of El Cariso. Lake Elsinore is northwest of Wildomar and the northern portion is part of the Temescal Canyon. To the east of the lake are the much older and more eroded slopes of the Temescal Mountains.