Trail down to the Rio Grande River from the Big Arsenic Campground. This area is part of the Rio Grande del Norte National Monument, Wild Rivers section, located west of Questa. At the river you pass a spring and there are a few fishing camp sites. A distance further on is a turnoff to a petroglyph site. The trail ends at the last fishing camp site.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.
To hike From Questa, New Mexico go north on Highway 522 a few miles, then turn left onto Cerro Road (Highway 378). Follow this road through the small community of Cerro and it will enter the National Monument. The visitor center is about 17 miles from the turnoff, on a loop drive that includes the campgrounds and scenic overlooks.