CLEARFIELD – Roland “Rock House” Welker, winner of the seventh season of History Channel survival show, ALONE, held an autograph signing event Friday at Denny’s Beer Barrel Pub, Clearfield. A native of Shiloh, Clearfield County, Welker outlasted nine other contestants and survived 100 days in the Canadian Arctic. For that, he won the largest cash prize in show history, $1 million dollars.