 Westhay Moor forms part of the Somerset Levels and Moors which is important for its grazing and ditch system, and is crossed by the River Brue and Galton's Canal.Over much of the moor, the water table is high throughout the year with extensive winter flooding occurring regularly.The level of the water tables can be artificially lowered during active working of the peat excavations, but for much of the year these are often filled with water.