New Carrollton–Silver Spring Line
The line mainly provides service on the East-West Highway corridor from the eastern portion of Prince George's County to Montgomery County . 
<triplet> East-West Highway corridor <subj> Prince George's County <obj> located in the administrative territorial entity <subj> Montgomery County <obj> located in the administrative territorial entity <triplet> Prince George's County <subj> Montgomery County <obj> shares border with <triplet> Montgomery County <subj> Prince George's County <obj> shares border with