East of Greenwood, it has a short concurrency with Route 7.
The route turns north in a short concurrency with AR 105.
It then meets State Route 63 for a short concurrency.
In the center of town, the route forms a short concurrency with PA 851.
It has a short concurrency with K-14 in and near Arlington.
Routes 12 &101 share a short, 150-yard concurrency in the center of town.
In the town, the route has a short concurrency with PA 969.
From here, the road continues north through more rural areas, forming a short concurrency with PA 770.
There is a short concurrency with NY 28 in the village.
From this point, the road continues through more rural areas, forming a short concurrency with PA 231.