The embankment (dam) that surrounds Killdeer Reservoir deteriorated significantly since its construction in 1971. Its condition posed a safety risk to those who live within the area and would be flooded should the embankment fail. The Ohio Division of Natural Resources (ODNR) began a process to determine how best to keep the public safe and eliminate this threat.

After assessing the dam in 2005, ODNR reduced the water level and began the process of decommissioning the dam to protect the community. Dam safety experts and engineers determined the risk was too great to maintain any recreational water depth, and the dam was fully decommissioned to ensure public safety.

The drain in Killdeer Reservoir was opened allowing water to free flow out of the reservoir. A notch was then cut into the side of the dam near the southwest corner of the reservoir.

Options for future use of the site will be assessed and will focus on wildlife habitat and associated recreational opportunities.

The 9,230-acre Killdeer Plains Wildlife Area lies in the grain farming country of north-central Ohio, eight miles south of Upper Sandusky. Wyandot County Road 115 provides access from OH-294, two miles west of Harpster, and from OH-309, eight miles west of Marion. OH-67 and OH-294 border the area on the west and north. Killdeer Plains Wildlife Area is quite flat, with little natural drainage; however, land adjacent to the Little Sandusky River on the east edge of the area is quite rolling.

Approximately two-thirds of the area is in cropland and grassland. The other one-third is divided almost equally between woods and shrubby coverts and water. The water areas include more than 1,000 acres of marsh, a 360-acre green tree reservoir, and 125 ponds ranging from less than an acre to 50 acres in size. Most small ponds are not shown on the map.

Killdeer Plains Wildlife Area is situated in a natural basin of flat, poorly drained soils formerly covered by prairie sloughs. The original prairie spanned about 30,000 acres. Early records report an abundance of deer, waterfowl, and furbearers. The “Plains” eventually were drained, with varying degrees of success, by ditching and tiling. Today, the agricultural land around the area is intensively farmed for corn and soybeans. The purchase of land for this area began in 1952.

Wildlife management activities included the development and management of several thousand acres of grain crops and grassland, primarily for nesting and migrating grassland wildlife. Trees and shrubs have been planted along field borders and in odd areas to provide permanent cover for upland wildlife. Woods have been protected and improved. Several of the ponds provide fishing opportunities. An 800-acre marsh was constructed in 1966. All suitable fishing waters were stocked with fish. Waterfowl production was enhanced through the provision of several hundred wood duck nest boxes and Canada goose nesting structures. The green tree reservoir was completed in 1994 with assistance from Ducks Unlimited. Pond 3 has been converted to a moist soil unit for the benefit of waterfowl.

The primary purpose of the wildlife area is for grassland wildlife management and associated recreational use. Uses that have become increasingly popular because of the area’s natural features and open character are nature lore, wildlife photography, and bird watching.

Restroom, portable toilet, at Wildlife Area Headquarters.
Accessible Electric APV Trail on former County Road 75, permit required. This road is closed to other vehicles.