Leashed pets and bikes are permitted on Old Fall River Road until Nov. 30 but not on the 0.1-mile trail down to Chasm Falls. Starting Dec. 1, the road converts to trail status and bikes and pets ...

While Trail Ridge Road allows ... waterfalls to foliage. Taking Old Fall River Road also allows visitors to skip almost all of the nearly 3-mile hike to Chasm Falls, a popular waterfall destination.