Upper Black Rock Falls is a waterfall in Santa Clara County, California, in the Central California Foothills and Coastal Mountains region. It lies about 4.6 miles northeast of Day Valley and roughly 12.2 miles north of Watsonville as the crow flies.
Its height has not been recorded in the source data.
The Central California Foothills and Coastal Mountains are rolling hills and low ranges of oak woodland, chaparral and grassland with a Mediterranean climate of wet winters and dry summers. Streams are seasonal, and waterfalls run strongest after winter and spring rains.
Santa Clara County holds 8 recorded waterfalls, and several are close by. Black Rock Falls, 30 feet high, is under a mile away. Upper Falls, 15 feet high, is under a mile away. Basin Falls, 20 feet high, is under a mile away.
Upper Black Rock Falls is located at 37.0833° N, 121.8038° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.