Site 1 - Lava tube

A lava tube located a few meters next to the Observatory Road formed by roofing over a lava channel. It is 5 meters long, 1 meter wide and about 2 meters high. It is an early-stage lava tube as it was probably active for a few hours to a few days, not being able to develop more. The outer rim is surrounded by overflows with pahoehoe textures. Inside, in the deepest part of the tube, is visible the ephemeral vent that originated the tube, whereas on the lateral walls there are several lava flows overlapped, with pahoehoe squeeze-outs in between a’a’ rubbles.