Hagg Lake Park, Gaston, Oregon

Henry Hagg Lake, and the surrounding Hagg Lake Park, are located in rural Washington County, Oregon, 50250 SW Scoggins Valley Road, Gaston OR 97119 about ½ hour from Hillsboro and right outside of Forest Grove.  The park is actually owned by the U.S. Bureau of Reclamation, but is managed by Washington County.  There is a $6.00 fee per vehicle to enter the park.

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ADA Accessible fishing pier

Henry Hagg Lake was created in 1975 as a reservoir for neighboring populations and farm lands, providing “irrigation and drinking water as well as flood mitigation services. The cities of Forest Grove, Hillsboro, and Beaverton, along with smaller communities, rely on the reservoir for drinking water and other municipal needs, and for industrial uses. The lake also provides recreational opportunities, including trout fishing, swimming, and boating and several picnic areas and hiking trails.”  The area that is now the lake was originally part of Scoggins Creek.

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Boat available for rent

There are about 15 miles trails around the lake, which are rated “difficult” and “not maintained” and it is not advised families with small children take these trails.  Hagg Lake is great place to bring a picnic for the day and try out boating.  They also stock the lake, so fishing is pretty much guaranteed to be good. ​

The lake is beautiful, fairly small as far as lakes go and on the day we went there was a *lot* of motorboat traffic.  It should also be noted that there have been several drownings due to steep, unpredictable drop offs and everyone entering the lake should be wearing a life jacket​.  Life jacket loaner stations are located throughout the park for free.  You can also rent motor boats, kayaks and paddle boats from Mad Jack’s for about $50.00 per day.

Different colors of the lake indicate different depths and drop-offs.