American Parks II · Farstep pack

Old Faithful in 3D

Yellowstone's Upper Geyser Basin

Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

Old Faithful was named in 1870 for its regularity: it erupts about every 60 to 110 minutes, throwing water 32 to 56 m high for 1.5 to 5 minutes. Its cone is geyserite, silica left behind layer on layer as the hot water cools. In this walk one cycle is shortened to 90 seconds.

Where: Upper Geyser Basin, Yellowstone National Park, Wyoming, USA
Eruptions: About every 60 to 110 minutes
Height: 32 to 56 m
Named: 1870, for its regularity
UNESCO World Heritage: 1978

Official site

Walk Old Faithful in 3D

A real-time 3D model, built from open elevation data and published measurements. Loads 2.4 MB when you start.

Old Faithful

Walk it yourself. Works on this phone.

Part of the American Parks II pack: a one-time unlock in this browser.

Terrain from open elevation data · a 3D reconstruction, not a photograph · tags as in the app

What you'll find in the walk

Gold markers in the scene open these cards.

Old Faithful
Known
Named in 1870 for its regularity, it erupts about every 60 to 110 minutes, sending water 32 to 56 m high for 1.5 to 5 minutes. Here one cycle is shortened to 90 seconds.
Geyserite
Known
The pale crust is sinter: silica carried up in the hot water and left behind as it cools. The cone has grown this way, layer on layer.
The first national park
Known
Yellowstone became the world's first national park in 1872. The Upper Geyser Basin holds the largest concentration of geysers on Earth.

How to visit in real life

Old Faithful is beside the main park road with a boardwalk around the cone, and the park posts predicted eruption times. Stay on the boardwalks: the ground around hot springs can be thin crust over boiling water.

Opening times and tickets change: check the official site. Official site