Call ahead This experience may be open for on-site visitation; however, offerings and/or operating procedures may have changed due to COVID-19. Please verify details before you go and visit the COVID-19 Resources page for more information.
The lake was formed about 20,000 years ago when rising magma-encountered groundwater resulted in violent steam explosions. The resulting explosions formed a broad shallow crater, which later filled with water.
This site has a primitive boat launch and parking area. This is a non-motorized lake.