[2] The trail is maintained by the US Army Corps of Engineers as part of its management of the Raystown Lake complex.

[3] After the development of Raystown Dam and the artificial lake in 1973, the western flank of Terrace Mountain alongside the lake became part of a protected area mostly owned by the federal government, interspersed with some tracts of Pennsylvania's Rothrock State Forest and Trough Creek State Park.

Heading to the northeast, the trail first follows an old gated road for about 0.5 mile and then climbs the side of Terrace Mountain.

At 6.9 miles, the trail crosses Pennsylvania Route 994, followed by a scenic gorge formed by Tatman Run.

[3] The next segment of the Terrace Mountain Trail features several views of Raystown Lake plus a few old shacks and abandoned buildings, and it traverses some areas that are below water when the reservoir is in flood stage.