A smooth bowl carved into bedrock by the grinding action of stones whirling around an eddy in a river, such as at a rapids. Many potholes were formed by torrents of glacial meltwater during the Ice Age. The best place to see these along the Ice Age Trail is near the western terminus in Interstate Park — formed when the St. Croix River was much deeper than today.
A hole generally deeper than wide, worn into the solid rock at falls and strong rapids by sand, gravel, and stones being spun around by the force of the current. In desert country a pothole often collects water during rains and can contain a variety of small freshwater creatures. After rain they can be an important water source for the local wild animals. Care should be taken around potholes to not contaminate or unnecessarily waste the precious water. We try not to walk through them even when they are dry, knowing that the little critters are encapsulated in the dust, just waiting for the next rain storm. See also Tank, Tinaja, and Water Pocket. Potshard See Potsherd. Potsherd (also sherd, shard, or potshard) A piece of a broken ceramic pot. Pouroff A dry waterfall in a drainage.
A shallow depression, generally less than 10 acres in area, occurring between dunes on a prairie, often containing an intermittent pond or marsh and serving as a nesting place for waterfowl. (Bates and Jackson 1980.)
A â€˜potholeâ€™ is a type of wetland. They vary in size from large wetlands that hold water year-round to small ponds that are wet for only a few weeks annually. These wetlands are common in the Prairie provinces, earning the region the name â€˜Prairie Pothole Regionâ€™. This is an extremely important area, as the pothole wetlands are key breeding habitat for waterfowl.