The hairiest experience Chuck Langrill ever had while he was out “Sasquatching” in the Sierra Nevada took place one night as he followed a riverbed into the mountains. Searching for signs of the elusive bigfoot in the soft mud, he heard whooping vocalizations coming from both sides of a nearby valley. So like any good Sasquatch searcher, Langrill sat down and waited as the sounds got closer. “I was sitting there with my camera in my hand. I just had a feeling something was going to happen. Then the trees start to move and I see this black, furry thing,” …