McKeldin Rapids This page and video cover parking, trailhead location, conditions, navigation, actual hiking time, and more. By the Numbers Distance: 2.4 Miles One Way Time: 1 hr. Difficulty: 4/10 Views: 4/10 Parking 11676 Marriottsville Rd, Marriottsville, MD 21104 Trailhead From parking lot, follow road pass basketball courts to Plantation Trail and then to Switchback Trail. Bathrooms Available in the parking lot.
