This 5-part series explains the 100-year-long effort by scientists to decide where the bighorn sheep belonged in the Linnaean system and to get the animal pictured correctly.
Bighorn Sheep Encounters
by Joseph A. Mussulman
During a reconnaissance assignment eight miles up the Yellowstone River on 26 April 1805, Joseph Field became the first member of the Corps to glimpse a live bighorn sheep.
By telling the story of how these photos and videos were created, the behaviors of the bighorn sheep are described.
Early Bighorn Specimens
by Joseph A. Mussulman
In 1800 a Scottish explorer shot several specimens in the Canadian Rockies and brought back hides, heads and horns for study by American and British zoologists, including Dr. George Kearsley Shaw of the British Museum, whose study was published in 1804.
Bighorn: Sheep or Goat?
by Joseph A. Mussulman
We confront the paradox that Elliott Coues pointed out in 1893—that Lewis and Clark had mistaken goats with wool … for sheep, and sheep without wool . . . for ibexes. Succeeding naturalists heightened the misunderstanding with invidious comparisons.
Classifying Bighorn Sheep
by Joseph A. Mussulman
The first naturalist to publish an honest admission of uncertainty over the respective identities of the wild sheep and goat of North America was John Davidson Godman (1794-1830). Audubon and Bachman contributed illustrations and descriptions.
Experience the Lewis and Clark Trail
The Lewis and Clark Trail Experience—our sister site at lewisandclark.travel—connects the world to people and places on the Lewis and Clark Trail.
Discover More
- The Lewis and Clark Expedition: Day by Day by Gary E. Moulton (University of Nebraska Press, 2018). The story in prose, 14 May 1804–23 September 1806.
- The Lewis and Clark Journals: An American Epic of Discovery (abridged) by Gary E. Moulton (University of Nebraska Press, 2003). Selected journal excerpts, 14 May 1804–23 September 1806.
- The Lewis and Clark Journals. by Gary E. Moulton (University of Nebraska Press, 1983–2001). The complete story in 13 volumes.
This site is provided as a public service by the
Lewis and Clark Trail Alliance
with cooperation and funding from the following organizations:
- Lewis and Clark National Historic Trail
- Montana Committee for the Humanities
- Idaho Governor's Lewis and Clark Trail Committee
- The Capital Gallery (Lewis and Clark Fort Mandan Foundation)
- Yellowstone Public Radio
Unless otherwise noted, journal excerpts are from The Journals of the Lewis and Clark Expedition, edited by Gary E. Moulton, 13 vols. (Lincoln: University of Nebraska Press, 1983-2001).