Strange Cloud at Pisgah in California

Enhanced video at http://www.youtube.com/watch?v=BF2s6tLoTC4 We recently took a trip out to the Pisgah area where Youtube user Dutchsinse claimed to have seen something venting from the ground on Doppler radar. We managed to drive down an old road about a mile, but because it was 108 degrees, we were only able to hike about a mile further on foot. We noted this cloud formation that appeared to emanate from close to the ground and spread upwards. Earlier on in the day the cloud had more of a "V" shape at the base, which tends to support what Dutchsinse's theory that there may be steam coming from a vent in the area. -~-~~-~~~-~~-~- Please watch: "SBS ep.121 - Sailing Back from Catalina and a Postmortem" https://www.youtube.com/watch?v=DPxhSgXk8sM -~-~~-~~~-~~-~-