MD 329 begins at an intersection with MD 33 (St. Michaels Road) just west of the village of Newcomb. The two-lane undivided state highway heads south, skirting the southern edge of the community. MD 329 enters the community of Royal Oak, where the highway passes around a branch of Oak Creek and curves to the east.
MD 329 starts at an intersection with MD 33 (St. Michaels Road) just outside Newcomb village. The two-lane road heads south, bordering the southern edge of the community. As it enters Royal Oak, the highway navigates around a creek and then turns towards the east.