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Thermal in Riverside County, California — The American West (Pacific Coastal)
 

Martinez Indian Agency

 
 
Martinez Indian Agency Marker image. Click for full size.
Photographed by Douglass Halvorsen, March 25, 2014
1. Martinez Indian Agency Marker
Inscription. Three structures here - a school, agency building and residence, are believed to be the oldest standing U.S. Indian Agency buildings in California. They were built about 1907 by the Martinez Agency, established in 1876. The first written record of the village was made by the Romero - Estudillo expedition of 1823, telling of well developed agriculture. The Bradshaw road was built through here in 1862.
 
Erected by Riverside County Historical Society. (Marker Number RIV-042.)
 
Topics. This historical marker is listed in these topic lists: Indigenous Peoples and CommunitiesSettlements & Settlers. A significant historical year for this entry is 1907.
 
Location. 33° 33.759′ N, 116° 9.226′ W. Marker is in Thermal, California, in Riverside County. It is on Martinez Rd south of 66th Avenue, on the right when traveling south. Touch for map. Marker is in this post office area: Thermal CA 92274, United States of America. Touch for directions.

Regionally, this marker is in Greater Los Angeles, in the Coachella Valley, and in the Peninsular Ranges. It is also in the American Southwest. Globally, it is in North America, on the Ring of Fire, in the Pacific Rim, in the Western Hemisphere, in the Western World, and in the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within 12 miles of this marker, measured as the crow flies: Jacqueline Cochran (approx. 5.1 miles away); Water Trough (approx. 8.2 miles away); Veterans Remembrance Memorial (approx. 8.2 miles away); History of Electricity in the Coachella Valley (approx. 11.4 miles away);
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Dr. June Robertson McCarroll (approx. 11½ miles away); Smiley Place (approx. 11.7 miles away); USS Liberty Tree - USN Captain William L. McGonagle (approx. 11.7 miles away); Palm Springs Land and Irrigation Company (approx. 11.7 miles away).
 
Another marker is no longer nearby. 1909 Indio Schoolhouse (was approx. 11.7 miles away but has been confirmed missing).
 
Regarding Martinez Indian Agency. One of these historic structures, the one-room schoolhouse, was totally remodeled in recent years and looks like a brand new building. The hopeful goal for the Martinez Historical District is to obtain additional grants and private funding to renovate the other two buildings to their original condition.
 
Martinez Indian Agency residence image. Click for full size.
Photographed by Douglass Halvorsen, March 25, 2014
2. Martinez Indian Agency residence
Martinez Indian Agency building image. Click for full size.
Photographed by Douglass Halvorsen, March 25, 2014
3. Martinez Indian Agency building
Martinez Indian Agency Marker image. Click for full size.
Photographed by Douglass Halvorsen, March 25, 2014
4. Martinez Indian Agency Marker
Martinez Indian Agency School image. Click for full size.
Photographed by Douglass Halvorsen
5. Martinez Indian Agency School
 
 
Credits. This page was last revised on January 22, 2018. It was originally submitted on January 19, 2018, by Douglass Halvorsen of Klamath Falls, Oregon. This page has been viewed 633 times since then and 38 times this year. Photos:   1, 2, 3, 4, 5. submitted on January 19, 2018, by Douglass Halvorsen of Klamath Falls, Oregon. • Andrew Ruppenstein was the editor who published this page.
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Jun. 7, 2026