Mongold (Detroit Lake)

  General Advisory 05/23/18
A health advisory was issued today for Detroit Lake. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Detroit Lake. These toxin concentrations can be harmful to humans and animals. People should avoid swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing or power boating, in areas where blooms are identified. Although toxins are not absorbed through the skin, people who have skin sensitivities may experience a puffy red rash at the affected area. To learn if an advisory has been issued or lifted for a specific water body, visit the Harmful Algae Blooms website at http://www.healthoregon.org/hab and select “algae bloom advisories,” or call the Oregon Public Health Division toll-free information line at 877-290-6767.

Major Features & Activities

  • Blue Indicates that some, but not all, facilities are accessible according to Americans with Disabilities Act (ADA) standards
Major Features & Activities:
  • Picnicking
  • Restrooms Flush
  • Swimming
  • Boat Ramp
  • Day-Use Fee
  • Fishing


Mongold Day Use area is 1.5 miles west of Detroit Lake State Park. It's the only public boat launch facility on the lake featuring a swimming area, grass beach, picnic facilities and restrooms. Mongold is a year-round fee area.

Mongold has 58 single car parking spaces and three fully-accessible parking spaces near the swimming area, and another 25 single car parking spaces at the top of the parking lot. There are 120 vehicle/trailer parking spaces, and three that are accessible to people with disabilities.

Overnight parking at Mongold is permitted only when the visitor is camping on Piety Island.