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- Physical shape of the ground surface. Collective features of the Earth's surface, especially the relief and contour of the land. The arrangement of hills and valleys in a geographic area.
Bureau of Reclamation - Cite This Source - This Definition
- ATV, Conjunctive use, Existing ground, Ground water table, Harrow, Leachate, Mulch, Observation well, Offstream uses, Original ground (surface), Seep, spring, Sprinkler irrigation, Terrain, Well, Withdrawal, yield