SR 205 begins at an intersection with SR 3 (Kings Highway) at Purkins Corner a short distance to the east of King George, the county seat of King George County. The state highway heads east as Ridge Road, which follows the height of land between the Upper Machodic Creek watershed to the north and Pine Hill Creek to the south.
SR 205 starts at an intersection with SR 3 (Kings Highway) near Purkins Corner, a short distance east of King George, the county seat of King George County. The highway then continues eastward as Ridge Road, which runs along the ridge between Upper Machodic Creek to the north and Pine Hill Creek to the south.