 There, the highway meets the eastern end of MD 227 (Marshall Corner Road), passes near the eastern end of the Indian Head Rail Trail, and intersects Billingsley Road, which leads to the southern end of MD 925 (Old Washington Road).US 301 expands to six lanes near Smallwood Drive as the highway passes through the planned community of St. Charles, which contains the St. Charles Towne Center shopping mall.The highway continues through the unincorporated town of Waldorf, where the highway meets the eastern end of MD 228 (Berry Road) and MD 5 Business (Leonardtown Road).