Owned by the U.S. Bureau of Reclamation, maintained and operated by Washington County, the Park features numerous picnic areas, two boat launching facilities, a fully stocked lake for fishing, more than 14 miles of hiking/mt. biking trails, and observation decks for wildlife and bird watching. Since the creation of Henry Hagg Lake in the mid-1970s, Washington County and the Bureau of Reclamation,  have shared a commitment to make the Park user-friendly to every visitor. Hagg Lake is Located just 25 miles southwest of Portland, resting at the base of Oregon's beautiful coastal range, Hagg Lake offers visitors the best of many outdoor recreational activities. http://www.co.washington.or.us/Support_Services/Facilities/Parks/Hagglake/

 

Henry Hagg Lake (also Hagg Lake) is an artificial lake in northwest Oregon, in the United States. The reservoir is an impoundment of Scoggins Creek, which drains a small portion of the eastern side of the Northern Oregon Coast Range.[3] The lake and creek are part of the Tualatin River’s watershed in the Tualatin Valley.[4] It is located about 5 miles (8.0 km) southwest of Forest Grove. https://en.wikipedia.org/wiki/Henry_Hagg_Lake

 

Population growth, fueled by the success of Washington County’s local agriculture, increased the need for both residential and irrigation water. To satisfy this need, Henry Hagg Lake was created in 1974 behind an earthfill dam on Scoggins Creek. The reservoir was named in honor of Henry Hagg, an Oregon dairy farmer who was active in local agricultural committees during the first half of the twentieth century. https://oregonencyclopedia.org/articles/henry_hagg_lake/#.WjXyVIWcH4g

 

Links about Hagg Lake:

https://www.recreation.gov/recreationalAreaDetails.do?contractCode=NRSO&recAreaId=1146

https://traveloregon.com/things-to-do/destinations/lakes-reservoirs/henry-hagg-lake-2/

http://www.bestfishinginamerica.com/or-hagg-lake-rainbow-trout.html

https://www.outdoorproject.com/adventures/oregon/paddling/henry-hagg-lake-canoekayak

https://or.water.usgs.gov/tualatin/hagg_lake/scenarios/