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History · Casper Mountain

12% of Casper Mountain’s homes were built before 1940

Below: maps from 1960 on.

0on the National Register
12%homes built before 1940
Add an old photoShare a memory

What stands out about Casper Mountain’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

A history waiting to be writtenNo old photos of Casper Mountain are in the public archives yet. The rest are in attics and albums.
★ What stands out · Help out

Start Casper Mountain’s collection

The first neighbors to add old photos shape how Casper Mountain’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
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The story so far

Casper Mountain, in brief

Wikipedia doesn’t have a history of Casper Mountain yet. The photos, dates and memories neighbors add here are how it gets written.

Casper Mountain is a census-designated place (CDP) on Casper Mountain in Natrona County, Wyoming, United States. It is part of the Casper, Wyoming Metropolitan Statistical Area. The population was 401 at the 2010 census.

Between the 2010 and 2020 censuses its population grew from 401 to 545 (+36%).

Intro from Wikipedia. Population: U.S. Census Bureau.

Timeline

Casper Mountain, 1892 to 1960

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1892Post officeThe Eadsville post office opens
  3. 1895Post officeThe Eadsville post office closes
  4. 20th century
  5. 1960On the mapFirst mapped by the U.S. Geological Survey
By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
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On the map

Casper Mountain on the map, 1960 to 1984

Every edition of the U.S. Geological Survey’s map of Casper Mountain. Tap a year, or press play to watch the town change.

Casper Mountain on the 1960 USGS mapCasper Mountain on the 1979 USGS mapCasper Mountain on the 1984 USGS map1960Crimson Dawn sheet · 1:24,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Casper Mountain.

Famous people

Famous people close to Casper Mountain

Nobody well known was born in Casper Mountain itself, so here are the best known from just nearby.

See all →
Lynne CheneySecond Lady of the United States from 2001 to 2… · b. 1941
M
Matthew ShepardAmerican LGBT student and murder victim · b. 1976
Tom CoburnAmerican politician and physician · b. 1948
J
Jim J. BullockAmerican actor and comedian · b. 1955
Anne Gorsuch BurfordAmerican politician and attorney · b. 1942
John HoffmanAmerican politician · b. 1965
Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Another post office, Eadsville, opened and closed inside today’s town.

Hamlets and corners on the map
Crimson DawnEadsville
Gone or out of use
Casper Mountain MinemineKoch Deposit Number ThreemineKoch Deposit Number TwomineMuddy Creek MinemineRim Rock Ranch Pitmine
3cemeteries and burying grounds inside Casper Mountain
Crimson DawnEadsvilleFougstedt

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Questions about Casper Mountain’s history

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
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Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →

From U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.