It travels southeastwards through farmland to Big Oak Tree State Park.

The road then turns east past the entrance to the park, and ends at its eastern terminus at Route 77 in Dorena.

This is expressed in terms of annual average daily traffic (AADT), a measure of traffic volume for any average day of the year.

[1] The road begins to travel south through the community and farmland.

[1] The road borders the Ten Mile Pond Conservation Area, and access to the area is provided by Route VV via CRD 518.

Just east of Big Oak Tree State Park, the road to the entrance of the park, Route RB, intersects Route 102 and CRD 508.

[1] The Dorena–Hickman Ferry is located southeast of the intersection, at the southern terminus of Route 77.

[3] The designation was previously used for a short route from Phelps City to Rock Port in Atchison County.