R. Zweifel Crotalus viridis helleri 305 Aug. 1, 1951 Half mi. E Camp, Cuyamaca Rancho State Park, San Diego County, California At 11:00 pm Tonight two of the rangers found (and killed) a rattler when it was crossing the road. 1/2 mi. W Poco Picacho Camp, Cuyamaca Rancho State Park, San Diego Co, Calif. Aug. 11, 1951 In adult taken crossing a dirt road in sycamore cedar forest at 11:30 AM, DST 10 1/2 mi (airline) SSE Julian, San Diego County, Calif. Aug. 13, 1951 In adult & found crawling through Saguaral at 9:00 AM, DST. The air Temperature in the shade 1/2" above the ground when the snake was first seen was 35°C. Its elongated tus was burned on about three years ago.