Cuyamaca (Diegueno: 'Ekwiiyemak) is a region of eastern San Diego County. It lies east of the Capitan-Grane Indian Reservation in the western Laguna Mountains, north of Descanso and south of Julian. Originally a Mexican land grant, the region is now dominated by the 26,000 acres (105.2 km²) Cuyamaca Rancho State Park. Within the park is the prominent Cuyamaca Peak, the second-highest mountain in San Diego County at 6,512 feet (1,984.9 m). In 1889 Cuyamaca Dam was completed, creating Cuyamaca Reservoir. A wooden flume, now long gone, was constructed to carry water west toward San Diego. The community of Cuyamaca consists of approximately 145 homes on a mountain (North Peak) north of the reservoir.