The Old Mill Trail was created in Old Mill Subdivision as a riverside park and included accessible pathways that are flat and easy to use for families and for folks with mobility issues or in a wheelchair . It is located at 213 Adam Drive in South Farmington, Annapolis County.

The county received the first land parcel as part of the 5 percent parks levy requirement as it relates to the subdivision process and built a small park.

Years later the developer and owner donated a parcel of land to the county and the municipality purchased an extra lot to expand the pathway park along the river.