We invite a long-time friend to talk about a range of subjects that includes hand-drawn maps, scammers, pyramids, caving, local buses and fly-fishing waiters in Central America. Then we'll head back to Alaska, where Kevin has lots of back country experience doing remote construction work. He's lived on windy mountaintops building cell towers and experienced a National Park where for months at a time, the only humans were those in his work crew. Kevin regales about a pedestrian bridge at Brook...