The ranch at Planet Bluegrass in Lyons is a unique place — something that’s noted by nearly every performer who takes its stage. This year’s Rocky Mountain Folks Festival (the second of two major events held at Planet Bluegrass each year) brought headliners Jason Isbell, Sufjan Stevens and Gillian Welch to the most relaxed setting in the state. Photographer Brandon Marshall was there to capture the atmosphere; check out a few of his highlights here and be sure to view the full slideshow.