Informational markers line the one mile hiking trail around the rim of Capulin Volcano. Each marker pertains to something in its vicinity.

A River of Lava Turned to Stone
On the plains in front of you about four miles away, are a jumble of rough and ragged rocks covered with trees. There are the remains of the second of three lava flows from Capulin Mountain Volcano many thousands of years ago. During its eruption, the volcano created lava flows that covered twenty-five square miles.