The Agua Fria River passes through Dewey-Humboldt about a half mile east of the Historical Society museum. It begins as a tiny wash on the north slope of Glassford Hill, widens as it sweeps around the east side of Prescott Valley, and finally becomes a perennial stream as it enters Dewey-Humboldt. There, in small shady pools separated by sparkling riffles, the river becomes a peaceful refuge, totally out of character with its desert surroundings. Filled in summer by the calls of Red-winged Blackbirds and in winter by the quacking laughter of migratory ducks, the river continues through the town on south through Agua Fria National Monument and Black Canyon to Lake Pleasant.