The Portage Canal Segment of the National Ice Age Trail is a 6.2-mile out-and-back trail that runs along the Portage Canal and passes through downtown Portage. The west end of the trail segment features the refurbished canal lock and the Columbia County Administration and Columbia County ADRC buildings.

Lighting and interpretive signs were added along the trail toward the east. The Historic Indian Agency House is a popular attraction on the eastern edge of the trail segment. In downtown, near the Ice Age Trail, you can enjoy some murals and Canoes on Parade. 

To enjoy the trail: From the west, Park in the Portage Library parking lot at 253 W. Edgewater Street. Access the trail from the corner of W. Edgewater Street and Lock Street, just south of the library; from downtown, park at Market Square, 200 E. Cook Street, and access trail just south near the Adams Street bridge; from the east, access the gravel trail parking lot just off Highway 33, across the highway from Meigs Transport. A brown National Ice Age Trail sign stands at this east access point.