Wild Rivers Back Country Byway is a 13 mile trail located near Questa, NM. The trail is primarily used for hiking and scenic driving and is accessible year-round.
It's is a great area! There are many trail heads that lead to the bottom of the Rio Grande. Its a great backpacking spot, fresh springs are in the area and are safe to drink, it makes a multiple day hike easier. Do be advised it is a very hot and humid spot at the bottom in mid summer, so stay near spring to stay hydrated. If you don't want to camp at the bottom, there are many great camping spots on to of the river, with water fountains and restroom accomodations.