Our History
The History of Two Rock School and the Two Rock Valley

Two Rock Union School

Two Rock Union School has a history of change and growth. Originally, three separate 
schools served the community. Iowa School, the first public school in Sonoma County, 
was established in 1852; Walker School in 1876; and Two Rock School in 1885. The 
three schools were unified under one school board of trustees in 1919. In 1952, the 
present site was chosen for the unification of these schools into one location. Two Rock 
Union School was built on five acres deeded to the district by the U.S. Government at a 
total cost of $61,588.00. Additional rooms and property have been added periodically.

U.S. Army Two Rock Ranch / U.S. Coast Guard Training Center

The Two Rock Ranch Station was established by the War Department in August 1942, 
after acquiring 876 acres of ranch at a price of $94,344.00. During WWll, the U.S. Army 
used the site as a communications station. The Army retained the original ranch 
structure to camouflage its military status. False furrows were graded around the 
operations area to make the ranch look like any other ranch from the air. More 
structures were added by the Army during the 1950's and 1960's. On July 1, 1971, the 
Army transferred the "ranch' to the U.S. Coast Guard to be used as a training center. 

Two Rock Valley

The Two Rock Valley was given its name because of the two prominent grey stones 
standing a few feet apart on a gentle slope above the Petaluma-Bloomfield highway. 
Two Rock was originally called "Dos Piedras". A band of tribal hunters first carved a trail 
between the rocks. The trail was later used by the Russians and Spanish. The rocks 
became landmarks on the trail from Mission San Rafael to Bodega and Fort Ross. 
Being a natural landmark, they became "cornerstones" for large Mexican land grants.

These pieces were written as part of a permanent school display for an Eagle Scout Project by Patrick Hall, a 
Two Rock Union School District student.

Now accepting registration for next year for all grades including preschool, transitional kindergarten and kindergarten.  Call 707-762-6617 for more information! 

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Download the School Calendar   /home/CA49709796052310/School Calendar/2017-2018%20Calendar%20rev.%20May%202017.pdf 2017-2018 Calendar rev. May 2017.pdf