[1] The trail closely follows the original route of the Grand River Valley Railroad, constructed in 1868-69 and in operation from 1870 to 1983.

Shortly after the line's creation on August 15, 1870, it was perpetually leased by the Michigan Central Railroad as a branch for their system.

Freight service continued and usually consisted of a daily train heading from Grand Rapids to Jackson with a return trip the next day.

[2][4] The northwest terminus is at Kalamazoo Ave just south of 44th St on the border of Kentwood and Grand Rapids.

After traversing the park, the trail turns south to follow East Paris Ave before crossing over M-6.

After crossing 68th St, the trail departs from East Paris Ave and resumes its southward course through farmland, eventually rejoining the old railroad embankment.

At the embankment, a spur follows the old rail line northwest, connecting to Dutton Shadyside Park and 68th St.

The trail extends for 4 miles through rural farmland before reaching Kraft Ave and 92nd St and running through Caledonia Community Schools property.

The trail then turns east to cross M-37 before quickly returning south to rejoin the embankment, continuing southeast to the county line at 108th St.[6] Headed south across 108th St, the trail surface transitions from paved asphalt to graded dirt before ending at Stimson Rd.

Trail users in this area must navigate an on-road segment on Stimson Rd, heading south to M-37 and then east on Crane Rd across the Thornapple River.

Currently, there is a grass trail starting at Greggs Crossing Rd, extending southeast along the Thornapple River.

After leaving Nashville and crossing Reed St the trail continues northeast, entering Eaton County.