Lulu City

Starting from the Colorado River Trailhead on RMNP's quieter west side, this out-and-back follows the infant Colorado River through a lush valley that feels nothing like the alpine tundra most visitors associate with the park. The trail is gentle and well-worn, winding through lodgepole pine forests and marshy meadows where moose sightings are practically guaranteed if you keep your eyes open. You'll cross a few small streams on log bridges before arriving at the remains of Lulu City — a silver mining boomtown from the 1880s that nature has almost entirely reclaimed. Don't expect standing buildings; a few cabin foundations and scattered timbers are all that remain, which somehow makes the history hit harder. The nearly four-mile approach feels mellow enough for strong kids, but long enough to thin out the crowds. Perfect for hikers who want wilderness without the punishment.