Fountaingrove Lake
reservoir in Santa Rosa, California

Fountaingrove Lake is a reservoir in the city of Santa Rosa, California, United States. Formed by the Fountaingrove Dam, the lake is fed from the east by Piner Creek, which is also the lake's sole outlet.
Fountaingrove Dam is an earthen dam built in 1953. It is 38 ft (12 m) high, 500 ft (150 m) long, and 15 ft (5 m) wide.
In 1985, a private country club known as The Fountaingrove Club built a championship 18-hole golf course centered on Fountaingrove Lake. The golf course was designed by Ted Robinson Sr.
The dam and half the lake is owned by the city of Santa Rosa as the Nagasawa Community Park.
Ecology
Fountaingrove has significant aquatic as well as upland biota, and is noted for being a habitat of the Western pond turtle, Actinemys marmorata, a "Species of Special Concern".
Within the lake at its verges are significant densities of wetland plants; moreover, at upland locations there are many native trees, particularly Coast live oak, Quercus agrifolia and Garry oak, Quercus garryana. Fishing has historically been conducted within the lake, although golf course and other urban development around the perimeter has reduced these practices.
The public source identifies “Fountaingrove Lake” as reservoir in Santa Rosa, California. This brief keeps that definition visible, then builds a research path around Fountaingrove, Lake and reservoir.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 4, 2026. The linked authority identifier is Q5474836. Authority coordinates are 38.486, -122.717. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1953 and 1985.
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This entry incorporates text from “Fountaingrove Lake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.