Check out this photo. This is a view from an old volcano in northern New Mexico we recently visited. Capulin Volcano National Monument. https://www.nps.gov/cavo/index.htm
It's worth a visit if you're in the area. Don't worry, it's not an active volcano. What's amazing is how green it is here in New Mexico, in June. Rare.
Also, check this out: www.thegmann.com