The lake is a maar, which is a volcanic crater formed by a steam explosion when magma encountered groundwater.
The park is situated at an elevation of approximately 500 feet above sea level.
Battle Ground Lake is home to a population of non-native sunfish in addition to the Washington Department of Fish and Wildlife trout stock.
The lake has no surface inlets or outlets, meaning its water level depends entirely on groundwater and precipitation.
The surrounding forest serves as a transition zone between the Willamette Valley and the Cascade Range ecosystems.
Battle Ground Lake State Park is a 280-acre park featuring a lake formed within a volcanic crater known as a maar. The central lake covers 28 acres and reaches a depth of approximately 60 feet. It is surrounded by a dense forest of Douglas fir, hemlock, and red cedar. The park offers over 5 miles of multi-use trails suitable for hiking, horseback riding, and mountain biking. Recreational facilities include 35 standard campsites, 15 partial-hookup sites, and group camping areas. Anglers can fish for stocked rainbow trout, which is a primary activity at the lake. Swimming is permitted in designated areas during the summer months. The park also provides multiple picnic shelters and play fields for public use.
The elevated viewpoint on the southern rim trail looking north across the lake.
Bring a Washington Discover Pass, which is required for vehicle access to all state parks.
Visit the eastern trail loop for the most consistent forest cover and shade.
Check the Washington Department of Fish and Wildlife website for recent trout stocking schedules before arrival.
Attempting to swim outside of the designated, roped-off swimming area.
Campsites are available by reservation; some park areas may experience seasonal maintenance closures during winter.
Leash your pets at all times; follow 'Leave No Trace' principles; keep music and noise at low levels.
