 DE 261 begins at an interchange with US 202 and the northern terminus of DE 141 north of <unk> Run State Park near Fairfax , heading northeast on four @-@ lane divided Foulk Road . The road heads near business parks , becoming an undivided road . The route continues through the suburban Brandywine Hundred area , passing residences along with a few businesses . DE 261 remains a four @-@ lane undivided road through this area , occasionally widening into a divided highway at intersections . The route intersects several roads including Murphy Road , <unk> Road , and Silverside Road . Between <unk> and Silverside roads , the road passes to the west of Brandywine High School . Farther northeast , DE 261 comes to the intersection with DE 92 , at which point it turns north and becomes a two @-@ lane undivided road that passes more homes . The route ends at the Pennsylvania state line . 
