Thomas Condon (1822–1907) was an Irish Congregational minister, geologist, and paleontologist who gained recognition for his work in the U.S. state of Oregon.
Thomas Condon at age 80
Thomas Condon in the 1870s
John Day Fossil Beds National Monument
John Day Fossil Beds National Monument is a U.S. national monument in Wheeler and Grant counties in east-central Oregon. Located within the John Day River basin and managed by the National Park Service, the park is known for its well-preserved layers of fossil plants and mammals that lived in the region between the late Eocene, about 45 million years ago, and the late Miocene, about 5 million years ago. The monument consists of three geographically separate units: Sheep Rock, Painted Hills, and Clarno.
Sheep Rock near sunset
Palisades at the Clarno Unit of the monument
Blue Basin
Thomas Condon