Episode 2 of 4
Washburn-Langford-Doane Expedition
- When
- 1870
- Where
- Yellowstone area
Expedition that named Old Faithful and organized preservation efforts.
In 1870, Montana residents organized this expedition, headed by Henry Washburn. It discovered a geyser erupting every 90 minutes, naming it Old Faithful, based on prior reports.
Sources
- Yellowstone National Park Wikipedia, revision of 2026-10-06
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.