Description - Nearby Green Peter Mountain was named by a pioneer with a vivid imagination, but the name stuck. The Quartzville section of the project is an historic gold mining area and a favorite with rockhounds. Green Peter Dam on the Middle Santiam River and Foster Dam on the South Santiam, just downstream from the mouth of the Middle Santiam, are two of the 13 Corps of Engineers multi-purpose dams in the Willamette Valley. Foster Dam regulates the flow from Green Peter dam. Both dams provide flood control, irrigation, hydropower generation, navigation, improved downstream water quality, and water-based recreation.
Green Peter dam is a concrete structure with a gated spillway, and Foster dam is a rockfill structure with a gated spillway. The powerhouse at each dam contains two generators.
Construction of Green Peter and Foster Dams began in 1961 and was completed in 1968 at a cost of $82.3 million.
- Nearby Green Peter Mountain was named by a pioneer with a vivid imagination, but the name stuck. The Quartzville section of the project is an historic gold mining area and a favorite with rockhounds.
Recreation - Boating, camping, fishing, water sports, picnicking and hiking are the most popular activities at Green Peter Lake. There are three boat ramps and three campgrounds at the lake.
Climate - The climate in Oregon varies greatly by region. The coastal region and the regions west of the Cascade Range are generally temperate and wet. Temperatures in the western portion of the state rarely rise above 85 degrees F during the warmest months and rarely dip below freezing during the winter.
Located in the beautiful Willamette Valley on the Middle Santiam River. From Sweet Home, 10 mi. NE on OR 20 and the Quartzville Road.