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Henderson County Conservation Area

​Site Brochure


Henderson County Conservation Area, which includes Gladstone Lake, offers a variety of recreational facilities. The 27-acre lake has a shoreline of 1.5 miles and a maximum depth of 25 feet. The area, about 20 miles southwest of Monmouth and five miles east of the Mississippi River, has a total of 87 acres.
Henderson County Conservation Area was purchased by the state in 1961 from the C. B. & Q. Railroad. The railroad used the area to dredge sand and gravel for use in its railroad maintenance. The lake water was used for filling the train’s steam engine.
  • While groups of 25 or more are welcome and encouraged to use the park's facilities, they are required to register in advance with the site office to avoid crowding or scheduling conflicts.
  • At least one responsible adult must accompany each group of 15 minors.
  • Pets must be kept on leashes at all times.
  • Actions by nature can result in closed roads and other facilities. Please call ahead to the park office before you make your trip.
We hope you enjoy your stay. Remember, take only memories, leave only footprints.
Park Information:

Northwestern Illinois

R.R. #1, Box 118
Keithsburg IL 61442



N: 41.090
W: -90.936

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