Lake Arrowhead is an unincorporated community in the San Bernardino Mountains surrounded by the San Bernardino National Forest. The original name of the community was Little Bear Lake, but it was later changed to Lake Arrowhead, taking its name from the rock formation in the form of an arrowhead on the face of San Bernardino Mountain. The community surrounds Lake Arrowhead Reservoir and is about 13 miles northeast of San Bernardino in San Bernardino County. The economy is based primarily on tourism.

Lake Arrowhead is a private lake governed by the Arrowhead Lake Association. The use of the lake is restricted to the recreational use of Lake Arrowhead property owners. The lake averages 780 acres and is about 2.2 miles long and 1.5 miles wide. Its maximum depth is 185 feet.

Near Lake Arrowhead are the following small residential communities: Cedar Glen, Blue Jay, Skyforest, Rimforest, Crest Park, Twin Peaks, Hook Creek Tract, Deer Lodge Park, Grass Valley, Arrow Villas, and Agua Fria.

Arrowbear Lake

Arrowbear Lake is a small unincorporated residential community just east of Running Springs in the San Bernardino Mountains about midway between Big Bear Lake and Lake Arrowhead.

Blue Jay

Blue Jay, established in 1914, is an unincorporated residential and commercial community located approximately one mile from the southwestern bank of Lake Arrowhead. The town is known for the Blue Jay Christmas Parade and the Blue Jay Jazz festival.

Twin Peaks

Twin Peaks is an unincorporated community located just west and southwest of Lake Arrowhead. Twin Peaks is home to the Calvary Chapel Bible College which is an evangelical Christian Bible studies college founded in 1975.

Running Springs - Snow Valley

Running Springs is a residential community in the San Bernardino Mountains and the San Bernardino National Forest located about 17 miles west of the city of Big Bear Lake. Snow Valley Mountain Resort was established in Running Springs in the 1920s. It is the oldest continuously operating ski resorts in Southern California and is one of four ski resorts in the San Bernardino National Forest. Running Springs is a major gateway to Lake Arrowhead, Arrowbear, Green Valley Lake, and Big Bear.

Green Valley Lake

Green Valley Lake is a small unincorporated residential community in the San Bernardino Mountains near Running Springs and Lake Arrowhead. The Green Valley Lake was created in 1926 with the construction of the Green Valley Lake Dam which is fed by rain, snow, and underground streams. Fishing is permitted with a California State fishing license.

Crestline - Lake Gregory

Crestline is an unincorporated community in the San Bernardino Mountains and the San Bernardino National Forest. Lake Gregory is located in the center of Crestline. The 84-acre lake and surrounding area make up the Lake Gregory Regional Park. The lake offers fishing, swimming, row boats, paddle boats, sail boats, and water slides. There are also extensive walking trails surrounding the lake. The Lake Arrowhead Region of California is adjacent to the Big Bear Region of California.

Lake Arrowhead Communities Chamber of Commerce

Lake Arrowhead Communities Chamber of Commerce, established in 1950, is a nonprofit membership organization. It is both a traditional chamber of commerce and a visitors' center. Members consist of businesses, professionals, and various organizations from Lake Arrowhead, Blue Jay, Arrowhead Lake, Twin Peaks, Running Springs, Green Valley Lake, Crestline, Cedar Sien, extending out to Big Bear Lake, Big Bear City, Fawnskin, Running Springs, and Holcomb Valley. The chamber offers members networking opportunities, educational opportunities, and an excellent business and community directory. The Lake Arrowhead Communities Chamber has an excellent website.