DCHP-1 Online
dam ((2)) 2 Prairies 
n. a large shallow excavation intended to hold the spring run-off and rain, serving as a reservoir.
See also: dugout (def. 3) pothole (def. 3b)
- 1957 "Dam," in prairie usage, refers to both the retaining wall of the dam and the waters within it, and covers everything from true irrigation dams, which, though fed periodically with fresh water, become very warm in summer, to stock-watering dugouts in farmers' fields.
- 1957 "Dam," in prairie usage, refers to both the retaining wall of the dam and the waters within it, and covers everything from true irrigation dams, which, though fed periodically with fresh water, become very warm in summer, to stock-watering dugouts in farmers' fields.