It depends where you go. In most of the lava fields that are decades old, the forest is coming back. In the newer lava flows or the base of the (active) caldera, there isn't much of anything. You can, more-or-less, distinguish the older and newer lava fields by how much, and what kind of, vegetation has come back.
It depends where you go. In most of the lava fields that are decades old, the forest is coming back. In the newer lava flows or the base of the (active) caldera, there isn't much of anything. You can, more-or-less, distinguish the older and newer lava fields by how much, and what kind of, vegetation has come back.