Rancho San Antonio, CA 1995 Seismic data were acquired on two seismic reflection profiles of approximately 475m length in Rancho San Antonio County Park, CA. The profiles were acquired near the Monte Vista fault. Profiles are bounded within max lat/lon: 37.336000°, -122.092651°, and min lat/lon: 37.334000°, -122.091500°. Receiver sensors were single 28Hz vertical component and spacing was 3m. Source was 1-lb. booster explosive. Source points and other information is in the observer’s logs. If these data are used for a presentation or in a publication, please acknowledge the U.S. Geological Survey Earthquake Hazards Program for their acquisition.