It took us two tries to hike the Cat Rock - Bob's Hill trail in winter, but that didn't make it any less worth doing. The hike is located in Cunningham Falls State Park. Along with the National Park Service's Catoctin Mountain Park (home to Camp David, and some otherwise-incongruous security infrastructure), Cunningham Falls comprises a large and well-preserved section of the Blue Ridge Mountains in north-central Maryland. At a length of 8 miles round trip and featuring moderate elevation gain, the hike would certainly not require two tries in a season other than winter. With snow on the ground and cold temperatures, however, the hike became a reminder of the importance of being prepared.