The River Ock is a small English river or brook. It has as its catchment area the Vale of White Horse, a low-lying an wide hanging valley in South Oxfordshire. It arises near the village of Little Coxwell and flows into the River Thames, at Abingdon (by the old Hygienic Laundry building), where an old iron bridge marks its passage. It collects tributaries from each village along the base of the White Horse Hills, where springs emanating from the chalk hills allowed settlements to flourish in former times.