Just In: The men's families have issued a $10,000 reward for the individual or search party that finds them.
According to loved ones, the men were out on an evening hunt when heavy fog and cold rain set in the San Juan Mountains.
Andrew Porter of Asheville, North Carolina, and Ian Stasko of Salt Lake City, Utah, were last heard from on Sept. 11, the day they hiked into the Rio Grande National Forest from a trailhead in a remote part of Conejos County, Colorado.