New Mexico's Land of Fire and Ice
Along the Continental Divide in New Mexico, you can hike to a volcano crater followed by a descent into a nearby ice cave in a collapsed lava tube where the temperature never rises above 31 F.
The hike to view the crater:
The trail to the Ice Cave leads through old-growth Juniper, Fir and Ponderosa Pines:
The Ice Cave:
Leaving the Ice Cave (not exactly accessible):