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History · Keystone

Half of Keystone’s homes were built after 1981

Most of Keystone was built recently: 10% of its homes predate 1940 and the median home dates from 1981. Below: maps from 1964 on.

0on the National Register
10%homes built before 1940
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What stands out about Keystone’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 Keystone are in the public archives yet. The rest are in attics and albums.
★ What stands out · Help out

Start Keystone’s collection

The first neighbors to add old photos shape how Keystone’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

Keystone, in brief

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

Keystone is a town in Bayfield County, Wisconsin, United States. The population was 373 at the 2020 census, down from 378 at the 2010 census. The unincorporated community of Ino is located in the town.

Its population held steady between the last two censuses: 378 in 2010, 373 in 2020.

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

Timeline

Keystone, 1908 to 1964

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

  1. 20th century
  2. 1908Post officeThe Ino post office opens
  3. 1908Post officeThe Ino post office closes
  4. 1964On 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

Keystone on the map, 1964 to 2005

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

Keystone on the 1964 USGS mapKeystone on the 1975 USGS mapKeystone on the 2005 USGS map1964Ino 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 Keystone.

Places that used to be

Lost post offices, old corners and burying grounds

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

Hamlets and corners on the map
Ino
1cemetery inside Keystone
Saint Peters

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

Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

PilsenIts storynot graded: under 1,000 residents or part of its townMasonIts storynot graded: under 1,000 residents or part of its townDeltaIts storynot graded: under 1,000 residents or part of its townIron RiverIts storyCEileenIts storynot graded: under 1,000 residents or part of its town

Questions about Keystone’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.