Near Julesburg in Sedgwick County, Colorado — The American Mountains (Southwest)
Colorado's Northeast Corner
Photographed by Cosmos Mariner, June 28, 2018
1. Colorado's Northeast Corner Marker
The Organic Act creating the Territory of Colorado was signed by President Buchanan on February 26, 1861. The act carved from the territories of Kansas, Nebraska, Utah and New Mexico the 104,247 square miles that became the 38th state in 1876. The original survey establishing this boundary point was completed by Oliver N. Chaffee on October 7, 1869 and recorded on a six foot limestone shaft set in a circular earth mound centered at the intersection of the 25th meridian west from Washington, D.C. and the 41st parallel north from the equator. At its time of replacement in 1976, the broken shaft, originally inscribed on the north, 25 W.L.; east, Nebraska; west, 41 N.L.; and south, 68 M. 79 CH. and 59 LKS. (the distance between the 40th and 41st parallels) was badly eroded. When resurveyed, the new inscription cited the now standard Greenwich reference for the longitudinal measurement.
Erected 1977 by The State Historical Society of Colorado and the People of Sedgwick County through the Mrs. J.N. Hall Endowment.
Topics and series. This historical marker is listed in these topic lists: Notable Places • Political Subdivisions. In addition, it is included in the Former U.S. Presidents: #15 James Buchanan series list. A significant historical date for this entry is February 26, 1861.
Location. 41°
this page online
Regionally, this marker is in the Eastern Plains. It is also in the American Mountain West, on the Great Plains, and specifically on the High Plains. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Louisiana Purchase.
Other nearby markers. At least 8 other markers are within 5 miles of this marker, measured as the crow flies: Sedgwick County Colorado (here, next to this marker); Perkins County Nebraska (here, next to this marker in Nebraska); Keith County Nebraska (here, next to this marker in Nebraska); Deuel County Nebraska (within shouting distance of this marker in Nebraska); Sam Bass and the Big Springs Robbery (approx. 4.3 miles away in Nebraska); Waterman Sod House (approx. 4.3 miles away in Nebraska); Phelps Hotel (approx. 4.4 miles away in Nebraska); The Pony Express (approx. 4.4 miles away in Nebraska).
More about this marker. The marker is adjacent to a weathered stone post and directional arrows marking the Colorado/Nebraska boundary and Colorado's Northeast Corner. The post is embedded in a concrete pad and surrounded by a wrought iron fence. The fenced enclosure also contains directional
Photographed by Cosmos Mariner, June 28, 2018
2. Colorado's Northeast Corner Marker (wide view; marker visible foreground of fenced enclosure)
Photographed by Cosmos Mariner, June 28, 2018
3. Old Colorado / Nebraska Boundary Marker (adjacent to marker)
Photographed by Cosmos Mariner, June 28, 2018
4. Northeast Corner of Colorado - U.S. National Geodetic Survey Marker (adjacent to marker)
Photographed by Mark Parker, October 12, 2023
5. Closeup of the stone post, Nebraska and Colorado directional arrows, and all four county markers
Four county markers: (top left) Deuel County, Nebraska; (top right) Keith County, Nebraska; (bottom left) Colorado's Northeast Corner (Sedgwick County below this marker left out); (bottom right) Perkins County, Nebraska
Credits. This page was last revised on December 24, 2024. It was originally submitted on June 29, 2018, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 2,015 times since then and 121 times this year. Photos: 1, 2, 3, 4. submitted on June 29, 2018, by Cosmos Mariner of Cape Canaveral, Florida. 5. submitted on August 24, 2024, by Mark Parker of Hickory, North Carolina. • Syd Whittle was the editor who published this page.
