Cebolla Mesa/big Arsenic Trails Professional Guide
Detailed Trail Description from our Guidebook
"The Rio Grande has carved a gorge 60 miles long and up to 1,000 feet deep through the thick sheets of lava that emanated from the volcanoes of the Taos Plateau. The river within the gorge remains wild and free-flowing, fed by snowmelt in Colorado’s San Juan Mountains and by thousands of springs within the gorge itself.
The basalt walls are steep, and house-sized boulders have tumbled from them to line the river or break the current as in-stream rocks. The polished rocks at streamside are slick, and the water off the banks is often ten feet deep. Ducks, mergansers, geese, and bald eagles are frequent sights along the river."