at the southeastern corner of the fort, md 175 has a partial cloverleaf interchange with md 32 (patuxent freeway) and enters odenton. the highway crosses over amtrak's northeast corridor and meets the southern end of md 170 (telegraph road); the south leg of the intersection, piney orchard parkway, leads to the odenton station on marc's penn line, which uses the amtrak tracks. md 175 continues as a four-lane undivided highway to a five-legged roundabout at the eastern end of odenton where the highway meets odenton road, higgins drive, and sappington station road, which is unsigned md 32aa. the highway continues as a two-lane undivided road past arundel high school and through the village of gambrills before reaching its eastern terminus at md 3 (robert crain highway) west of millersville. md 175 has separate intersections with southbound and northbound md 3; millersville road continues east from the northbound intersection through the eponymous village and past the historic childs residence.