 Fort Valley is almost entirely enclosed.At its southern end it is enclosed with an access point named Moreland Gap, and to the north it is constricted and nearly closed but for where Passage Creek flows through a narrow gap providing passage towards Front Royal.Passage Creek also is a prominent element of Fort Valley, running the entire length of the valley at its center, starting in Crishman Hollow in the mountain in the southernmost valley and flowing north, fed by other streams and runs, until it exits Fort Valley just past Elizabeth Furnace.