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

Pressure Ridges
Look down towards the base of the mountain and follow the lava flow that winds away from the mountain. The ripply lava formations you see are called pressure ridges. The ripples were caused by hot lava moving beneath the surface that had already cooled and hardened into a crust.