Captain George Vancouver Julia Butler Hansen Carlos Bulosan Ernestine Anderson Kurt Cobain Bill Gates & Paul Allen Home
Search Encyclopedia
Advanced Search
Featured Essay
Home About Us Contact Us Education Bookstore Tourism Advanced Search
7099 essays now available      
Donation system not supported by Safari     Donate Subscribe


Cyberpedias Cyberpedias
Timeline Essays Timeline Essays
People's Histories People's Histories

Selected Collections
Cities & Towns Cities & Towns
County Thumbnails Counties
Biographies Biographies
Interactive Cybertours Interactive Cybertours
Slide Shows Slideshows
Public Ports Public Ports
Audio & Video Audio & Video

Research Shortcuts

Map Searches
Alphabetical Search
Timeline Date Search
Topic Search


Book of the Fortnight
Audio/Video Enhanced
History Bookshelf
Klondike Gold Rush Database
Duvall Newspaper Index
Wellington Scrapbook

More History

Washington FAQs
Washington Milestones
Honor Rolls
Columbia Basin
Walla Walla
Roads & Rails

Timeline Library

< Browse to Previous Essay | Browse to Next Essay >

Benjamin Coplen discovers mammoth bones on Hangman Creek in May 1876. Essay 7512 : Printer-Friendly Format

In May 1876, Benjamin Coplen (1843-1912), a homesteader on Hangman (present Latah) Creek south of Spokane, discovers huge, mysterious bones in a bog near his spring. These fossils and others unearthed by neighbors are eventually identified as those of the Columbian mammoth. They soon begin circuitous journeys that will end in major museums in Chicago and New York.

The oozing, peat-covered area of the spring quivered when walked upon, and cattle sometimes became mired in it. Out of curiosity, Coplen probed the bog with a long pole and struck something hard. With the help of his brothers, he attached a hook to the pole and began hauling up bones, first an enormous vertebra, next a shoulder blade. Realizing they had uncovered something major, the Coplens soon drained the bog, bringing to the surface an amazing haul of huge and puzzling bones.

The five Coplen brothers, familiar with farm livestock, at least could match most of the bones with those of known animals, but could not identify the much larger creatures from which they must have come. Of all the bones uncovered, the most puzzling were the long, curved objects that the Coplens assumed to be huge horns. One weighed 145 pounds and was 10 feet long. Soon the brothers went on the road to exhibit some of their finds in such towns as Colfax, Walla Walla, and Dayton, where they attracted crowds and much newspaper coverage. A Colfax schoolteacher, James Edmiston, first posited the elephant connection and asserted that the long "horns" were actually tusks. In Dayton, an amateur photographer sent pictures of the bones to Yale University geologist James Dwight Dana, who authenticated them as belonging to "the extinct American elephant or mammoth" (Visible Bones, 80).

After their initial tour, the Coplens returned home to do more excavations and unearthed additional bones, bringing the tusk total to nine, ranging from three to 12 feet in length. In August, they launched a second, more ambitious tour, transporting the bones by steamship to The Dalles and Portland, where again they attracted crowds and newspaper comment. In Salem, Oregon, Thomas Condon, geology professor at the new university in Eugene, declared the fossils to be "unquestionably the finest elephant remains ever unearthed on this Coast" (Visible Bones, 82).

Meanwhile, Ben Coplen's neighbors, William and Thomas Donahoe, drained a spring on their own property and brought up, among other bones, a huge skull. They exhibited their finds at the Walla Walla County Fair. Finding the profits disappointing, they sold their bones to Nathaniel Thwing and his partners, who competed with the Coplens in exhibiting rival sets of fossils, showing them as far away as San Francisco.

In 1878, paleontologist Edward Cope of Philadelphia purchased the bones taken to San Francisco, including the gigantic skull. He later sold them to the American Museum of Natural History in New York, where they have helped researchers determine the different species of mammoths that once roamed North America.

In October 1876, the Coplens leased their traveling exhibit to Pacific University in Forest Grove, Oregon, in exchange for tuition for young George Coplen at Tualatin Academy. Tualatin was the preparatory school attached to the university.

In 1886, the Chicago Academy of Sciences purchased many of the remaining Coplen bones and assembled a skeleton comprised of the actual mammoth bones plus missing pieces made of plaster. The full mount was 13 feet high. In 1893 it was the central attraction at the Washington Pavilion at the World's Columbian Exposition in Chicago. In 1914 the Field Museum of Natural History in Chicago purchased the skeleton. There, paleontologists have studied it over the years and remounted it, most recently in 1993 for exhibition in its central hall. Later excavations of the Coplen and Donahoe sites produced some fossils of various animals, but nothing to compete with the mammoth discoveries of 1876.

Jack Nisbet, Visible Bones (Seattle: Sasquatch Books, 2003) 69-91; Jack Nisbet, "The Palouse Mammoths," Columbia, Vol. 18, No. 1 (Spring 2004) 11-16.

Travel through time (chronological order):
< Browse to Previous Essay | Browse to Next Essay >

Related Topics: Science & Technology | Environment |

Licensing: This essay is licensed under a Creative Commons license that encourages reproduction with attribution. Credit should be given to both and to the author, and sources must be included with any reproduction. Click the icon for more info. Please note that this Creative Commons license applies to text only, and not to images. For more information regarding individual photos or images, please contact the source noted in the image credit.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License

Major Support for Provided By: The State of Washington | Patsy Bullitt Collins | Paul G. Allen Family Foundation | Museum Of History & Industry | 4Culture (King County Lodging Tax Revenue) | City of Seattle | City of Bellevue | City of Tacoma | King County | The Peach Foundation | Microsoft Corporation, Other Public and Private Sponsors and Visitors Like You

This essay made possible by:
The State of Washington
Washington State Department of Archeology and Historic Preservation

Mammoth skeleton found at Hangman Creek, 1876
Courtesy Field Museum of Natural History

Benjamin Coplen, n.d.
Courtesy Columbia magazine

Skull of Columbian mammoth found at Pine Creek
Courtesy Columbia magazine

Palouse mammoth, Field Museum of Natural History, n.d.
Courtesy Columbia magazine

Home About Us Contact Us Education Bookstore Tourism Advanced Search is the first online encyclopedia of local and state history created expressly for the Internet. (SM) is a free public and educational resource produced by History Ink, a 501 (c) (3) tax-exempt corporation.
Contact us by phone at 206.447.8140, by mail at Historylink, 1411 4th Ave. Suite 803, Seattle WA 98101 or email