Porcupine Lava Tube is a lava located in Siskiyou County, California. It appears on the Porcupine Butte USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 4,764.94 feet (1,452.35 m) above sea level. The nearest populated place is Lakin, approximately 4.0 miles to the SSE.