Pools and Springs
When you gaze into Firehole Lake jets of hot gas can readily be seen. Since they look like flame, it is easy to understand why the early trappers called this lake “Firehole.”
There are other odd sights in the basins. Fountain Paint Pot looks like a pot of boiling paint, but it is merely colored clay. Morning Glory Pool is so named because of its flower-like cone. Black Sand Pool is a hot spring. Sapphire Springs is accurately named. It is as blue as the gem itself.