Rolly Polly, Snapshot, Cricket Eater and Sabertooth's hike from Warner Springs to San Ysidro creek along the Pacific Crest Trail. A great 9.4 mile roundtrip overnight hike with perfect camp spots along the creek. Start GPS: 33.272844, -116.645376 Campsite GPS: 33.248345, -116.599330 Warner Springs; The Cupeño people were long time indigenous inhabitants of the Warner Springs area. The Cupeño / Cahuilla Agua Caliente rancheria village was located at the hot springs located here. The hot springs were "rediscovered" by Spanish explorers of upper Las Californias province in 1795. William Henshaw purchased the Warner Springs Ranch in 1911, and had Henshaw Dam completed by latter 1922 and its reservoir filled by 1924. In 1978 the reservoir level was lowered 40% due to danger from the Elsinore Fault Zone running beneath the dam. Several Warner Spring sites and buildings were designated California Historical Landmarks, & National Historic Landmarks.