Old Faithful and the Upper Geyser Basin (September 7, 2025)

Bison and fumaroles on the road to Old Faithful. Fumaroles are steam vents that release volcanic gases and vapors from the Earth's interior. The escaping gases hiss and roar.

Waiting for Old Faithful, the geyser that erupts every 60-110 minutes, reaching heights of 106-184 feet, expelling thousands of gallons of boiling water.

We weren't the only ones!

Old Faithful. Weird to finally see for real after years of photos and Yogi Bear cartoons.

We saw it again from the Old Faithful Inn.

We took a walk through the Upper Geyser Basin to see smaller geysers. The Old Faithful Inn is behind me.

I was standing at the bench when the Lion geyser roared and exploded. A guy told me to wipe the mist from my glasses because dissolved minerals like silica in the spray could leave permanent marks on them.