Old Faithful & the Geyser Basins
The most famous geyser on earth erupts every 60–110 minutes and never disappoints. The surrounding Upper Geyser Basin contains the world's highest concentration of active geysers, all connected by timber boardwalks.
Geysers erupt on schedule, prismatic springs glow in impossible colour, and bison roam as they have for ten thousand years. A photographer's journey through America's first—and most extraordinary—national park.
The Story
Yellowstone is not a place you simply visit. It is a place that reminds you the ground beneath your feet is not as solid as you assume. Steam hisses through fissures in the earth. Mud pots bubble like slow, volcanic porridge. And Old Faithful — the park's iconic geyser — erupts with clockwork reliability, sending a column of boiling water 130 feet into the Wyoming sky.
The park spans more than two million acres across Wyoming, Montana, and Idaho, encompassing mountain forests, alpine meadows, lakes, and rivers. But it is the thermal features that make it unlike anywhere else on earth: more than 10,000 geothermal features, of which over 500 are active geysers.
"Standing at the rim of Grand Prismatic Spring, no photograph fully prepares you for the shock of those vivid rings — deep cobalt blue at the centre fading to turquoise, then jade, then gold at the edges."
Then there is the wildlife. Yellowstone supports one of the last intact large animal ecosystems in the northern temperate zone. Vast herds of bison graze meadows that feel unchanged since the Ice Age. Gray wolves — reintroduced in 1995 — have reshaped the park's ecology. Grizzly bears are frequently spotted along road shoulders and trail edges.
Visual Journal
Must-See Destinations
The most famous geyser on earth erupts every 60–110 minutes and never disappoints. The surrounding Upper Geyser Basin contains the world's highest concentration of active geysers, all connected by timber boardwalks.
At 370 feet wide and 121 feet deep, Grand Prismatic is the largest hot spring in the US and the third largest in the world. The rainbow rings that surround it are formed by heat-adapted microbial mats that flourish in progressively cooler water.
Called "America's Serengeti," Lamar Valley offers the best wildlife viewing in the lower 48 states. Dawn and dusk bring bison herds, elk, pronghorn, and — if fortune favours — glimpses of Yellowstone's wolf packs moving along the ridgelines.
Trip Planning
Common Questions