Tom Kelly, an Angeleno field recordist, undertook a remarkable thru-hike of the Pacific Crest Trail in 2023, capturing the trail's diverse soundscapes with microphones and handheld recorders. Two years later, he launched a free, public sound map featuring 200 locations along the PCT. This unique project invites listeners to immerse themselves in the trail's natural symphony, offering field notes, observations, and even details about the recording equipment used at each site. From chittering birds to chirping insects and the ominous drones of a wind farm, Kelly's sound map provides a rich, auditory experience of the PCT, blending pristine nature sounds with human presence. This initiative reflects his lifelong fascination with sound, music composition background, and a desire to share the trail's authentic essence beyond visual documentation.