History · Ajo

Ajo’s history is
mostly unwritten

The public archives hold only 3 old photos of Ajo. The rest are in attics, shoeboxes and the historical society. Help start the collection.

3old images & papers
3historic places
2need a date
Hocker Well, Jacal · Library of Congress

The story

from WikipediaRead it all ↗

Ajo is the Spanish word for garlic (Spanish pronunciation: [ˈaxo]). The Spanish may have named the place using the familiar word in place of the similar-sounding Oʼodham word for paint (oʼoho). The Tohono Oʼodham people obtained red paint pigments from the area.

Native Americans, Spaniards, and Americans have all extracted mineral wealth from Ajo's abundant ore deposits. In the early nineteenth century, there was a Spanish mine nicknamed "Old Bat Hole" that was abandoned due to Indian raids. Tom Childs Sr., found the deserted mine complete with a 60-foot (18 m) shaft, mesquite ladders, and rawhide buckets in 1847. He did not stay long at that time because he was on his way to the silver mines near Magdalena de Kino.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

built from the dates on the items below
1974DepartingCommons
1980–1999Nothing yet. Family albums go here.
Be one of the first

Start Ajo’s collection

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

1 of 10 decades since 1900 have photos 🗓️Date a photo2 archive items have no date+2 🔁Retake an old viewDeparting, 1974: stand where they stood+15 📦Share a family photoSign in to add one+10

Famous people from Ajo

See all 1 →
By decade

Ajo, decade by decade

National Register of Historic Places

3 historic places in Ajo

Ajo has 3 listings on the National Register, and they protect 113 historic buildings, because Ajo Townsite Historic District alone counts 106.

#44
In Arizonaby listings · most towns there have none
3places listed2 buildings · 1 district
0National Historic LandmarksNone here yet
113historic buildings protectedcounting each building in a district
1998first listedJohn and Isabella Greenway House · newest: Curley School, 2008

Where they are

Tap a dot for a photo and link. Districts show at their center.
BuildingsDistricts

When they were listed

The Register began in 1966.
National Park Service, National Register of Historic Places (05/22/2026) · styles from the National Archives catalog · photos from Wikimedia Commons, credited on each place

Then & now

No then-and-now pairs yet. Take a photo from the same spot as Departing (1974) and it appears here side by side.

🔁 Retake this view · +15

Stories next door

nearby towns’ history

From Wikimedia Commons (10) and the Library of Congress (2). Images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.

The coffee’s on

Where to, neighbor?

You’re in Ajo, AZView boundary

Nearby

All towns & citiesExplore the map
Loading boundary…

Ajo is your selected town. The feed includes posts assigned to this town, not a distance radius or ZIP code.

Neighborhoods narrow the feed further, while townwide announcements, events, and issues remain visible.

Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/19 · 2025-01-01