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{{Infobox NRHP | name =Register Cliff
| nrhp_type =
| image = ONHT Register-Cliff.jpg
| caption = Register Cliff
| nearest_city= Guernsey, Wyoming
| coordinates = {{coord|42|14|56|N|104|42|32|W|display=inline,title}}
| locmapin = Wyoming
| area =
| added = April 30, 1970
| refnum=70000674
}}Register Cliff is a sandstone cliff and featured key navigational landmark prominently listed in the 19th century guidebooks about the Oregon Trail, and a place where many emigrants chiseled the names of their families on the soft stones of the cliff {{mdash}} it was one of the key checkpoint landmarks for parties heading west along the Platte River valley west of Fort John, Wyoming which allowed travelers to verify they were on the correct path up to South Pass and not moving into impassable mountain terrains{{mdash}}geographically, it is on the eastern ascent of the Continental divide leading upward out of the great plains in the east of the U.S. state of Wyoming. It is notable as a historic landmark for 'registering' hundreds of emigrants on the Oregon Trail (thus also the other northern Emigrant Trails that split off farther west such as the California Trail and Mormon Trail) who came to follow custom and inscribed their names on its rocks during the western migrations of the 19th century. An estimated 500,000 emigrants used these trails from 1843–1869, with up to one-tenth dying along the way, usually due to disease. Register Cliff is the easternmost of the three prominent emigrant "recording areas" located within Wyoming, the other two being Independence Rock and Names Hill. The site was listed on the National Register of Historic Places in 1969. According to its nomination, the site was where emigrants would camp on their first night west of Fort Laramie. The property was donated by Henry Frederick to the state of Wyoming, to be preserved. GeologyRegister Cliff is a soft, chalky, limestone wall rising more than {{convert|100|ft|m}} above the North Platte River. It consists of The horizontal layers of sedimentary rocks eroded by the river. Level grass plains run from the cliff to the river. Primary erosion was by water and the continuing effects of wind and rain have little changed its features. [1] GallerySee also- Guernsey State Park
- Oregon Trail
- Oregon Trail Ruts (Guernsey, Wyoming)
References1. ^Register Cliff; Bill Barnhart; Wyoming Recreation Commission; National Park Service, Washington D.C.; April 3, 1970
|title=Register Cliff |work=National Register of Historic Places Nomination Form |publisher=National Park Service |author=Bill Barnhardt |date=December 19, 1969 |accessdate=June 26, 2016}} with {{NRHP url|id=70000674|photos=y|title=photos}}
}}External links{{commons category|Register Cliff}}- Register Cliff State Historic Site Wyoming State Parks, Historic Sites & Trails
- Register Cliff Wyoming State Historic Preservation Office
- [https://web.archive.org/web/20050104161642/http://www-wsl.state.wy.us/platte/WTWeb/RegisterCliff.htm List of names on Register Cliff] Wyoming State Library
{{Mormon Trail landmarks}}{{NRHP in Platte County, Wyoming}}{{Protected Areas of Wyoming}} 9 : California Trail|Mormon Trail|Oregon Trail|Protected areas of Platte County, Wyoming|Wyoming state historic sites|Inscribed rocks|Road transportation on the National Register of Historic Places|Natural features on the National Register of Historic Places in Wyoming|National Register of Historic Places in Platte County, Wyoming |