Mammoth Sound Studio. As a float tuber who visits Mammoth Lakes regularly, I always rely upon Rick's for gear and to use their air compressor. His instruction was top notch. This October OCRWC returns to Mammoth Lakes for its 10th anniversary event!Join us in the stunning California mountains and take on the mighty Mammoth. publicaciones; 72 Photo by The Fifty Project on February 19, Gear Review Mammut Barryvox S · Photo shared by. [HOST] + 1. 1d [HOST] May be an image of text that says. Not yet rated (1 Review). On a recent trip to Mammoth a friend and I booked Cog as our guide. Photo by Evan Michelson on January 11, May be an image of 1. Cog has great interpersonal skills and was very patient. I was stunned when i first stopped. .