Washington County borders the Ohio River and lies in the Unglaciated Allegheny Plateau ecoregion. Marietta was built at the mouth of the Muskingum on the Ohio River. The Little Muskingum River flows across much of the county from east to west, paralleling the Ohio River.

Places to visit

• The Muskingum River can be accessed at Luke Chute, Beverly, Lowell and Devola (see Muskingum River Water Trail guide and Muskingum River State Park from ODNR for access points and facilities).

• Wayne National Forest provides extensive access to the Little Muskingum River

• Kroger Wetlands includes several ponds (depth varies with rainfall and the season). This 20 acre area is located in the city of Marietta, immediately next to Interstate 77. The entrance to the park, on Acme Street just north of the Kroger, is signed. 8 species have been identified here, including Southern Spreadwing

• Buckeye Park on Ingleside Avenue, Marietta. 25 species have been observed here, including Variegated Meadowhawk and Citrine Forktail.

• Veto Lake Wildlife Area 32 species have been identified here. Pit toilets and picnic tables.

• Field Trip Guide from 2016 OOS conference

County Observation Activity

This graph shows the total number of odonata observations for the county in blue, with the average for all Ohio counties in orange. The season is divided into 10 or 11 day segments by Month – basically early-month, mid-month, and late-month.