Tag: Obsidian Ridge
August 15, 2021
Valles Caldera is the name of an extinct volcano that was 300 times as big as Mt Saint Helens. It lies not far from Los Alamos, where they built the A-bomb, and where I lived in 1972.
It blasted its top 1.5 million years ago. The town of Los Alamos is built on one of … More “Hiking in the Crater of a Volcano – Valles Caldera.”