The United States Army and the Oregon Trail

The United States Army and the Oregon Trail (HM1LZR)

Location: Guernsey, WY 82214 Platte County
Buy Wyoming State flags at!
Country: United States of America
Buy United States of America flags at!

N 42° 15.413', W 104° 44.937'

  • 0 check ins
  • 0 favorites
The U.S. Army's Role in Protecting the Oregon Trail in Wyoming 1842 to 1870

Lieutenant John C. Fremont led an expedition west in 1842 to map a route to Oregon Territory. The scout, Kit Carson, guided the expedition. Lieutenant Fremont's report and Charles Preuss's maps were used by many emigrants.

In June of 1849, the First Army post in Wyoming was established at Fort Laramie, also known as Fort John. Fort John was an old American Fur Company trading post located near the confluence of the Laramie and North Platte Rivers. The mission of Army units stationed at Fort Laramie was to protect emigrants travelling the Oregon Trail.

East of Fort Laramie at the confluence of Horse Creek and the North Platte River, the first Fort Laramie Treaty (1851) was signed by representatives of the Sioux, Cheyenne, Arapaho, Gros Ventre, Mandan, Assiniboin, and Crow Nations to allow whites safe passage along the Oregon Trail.

On August 19, 1854, an emigrant's lame cow was killed and eaten by members and guests of a Brule-Sioux village located approximately nine miles east of Fort Laramie. This led to an event known as the "Grattan Massacre". Lieutenant John Grattan's badly mishandled attempt to arrest High Forehead, a Miniconjou-Sioux, who had killed the cow, resulted in the deaths of Grattan, 29 soldiers, and Brule Chief Conquering Bear.

Near present-day Casper, Wyoming, the Army established Camp Payne in 1858 and abandoned it in 1859. In 1862, Platte Bridge Station was established nearby. Two separate battles would occur near the station on July 26, 1865 involving Cheyenne, Sioux, and Arapaho warriors and the US Army. In the first, Lieutenant Caspar W. Collins and four troopers were killed. Sergeant Amos J. Custard and twenty-two troopers were killed in the final battle. Sixty warriors involved in the battles were estimated to have been killed. Platte Bridge Station was renamed Fort Casper in honor of young Lieutenant Collins.

With the completion of the Continental Railroad in 1869, and the relocation of the telegraph line, the use of the Oregon Trail dramatically decreased and so did the Army's role in protecting the trail.
Series This marker is part of the Oregon Trail series
Placed ByThe Wyoming National Guard, in cooperation with the Advisory Council on Historic Preservation, U.S. Department of Interior, Wyoming State Historic Preservation Office, ad Wyoming State Parks and Historic Sites
Marker ConditionNo reports yet
Date Added Sunday, July 19th, 2015 at 6:06pm PDT -07:00
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)13T E 520707 N 4678328
Decimal Degrees42.25688333, -104.74895000
Degrees and Decimal MinutesN 42° 15.413', W 104° 44.937'
Degrees, Minutes and Seconds42° 15' 24.78" N, 104° 44' 56.22" W
Driving DirectionsGoogle Maps
Area Code(s)307
Which side of the road?Marker is on the right when traveling East
Closest Postal AddressAt or near Lucinda Rollins Rd, Guernsey WY 82214, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. What historical period does the marker represent?
  2. What historical place does the marker represent?
  3. What type of marker is it?
  4. What class is the marker?
  5. What style is the marker?
  6. Does the marker have a number?
  7. What year was the marker erected?
  8. This marker needs at least one picture.
  9. Can this marker be seen from the road?
  10. Is the marker in the median?