seep Bog – a type of wetland that accumulates peat due to incomplete decomposition of plant matter. Bourn – a brook; stream; small, seasonal stream. Brook – a small stream; a creek. Brooklet – a small brook. Burn – (Scottish) a small stream; a brook. Canal – an artificial waterway, usually connected to (and sometimes connecting) existing lakes, rivers, or oceans. Channel – the physical confine of a river, slough or ocean strait consisting of a bed and banks. See also stream bed and strait. Cove – a coastal landform. Earth scientists generally use the term to describe a circular or round inlet with a narrow entrance, though colloquially the term is sometimes used to describe any sheltered bay. Creek – (Australia, Canada, New Zealand, United States) a (narrow) stream that is smaller than a river; a minor tributary of a river; brook. Creek (tidal) – (mainly British) an inlet of the sea, narrower than a cove. Delta – the location where a river flows into an ocean, sea, estuary, lake, or reservoir. Distributary or distributary channel – a stream that branches off and flows away from the main stream channel. Drainage basin – a region of land where water from rain or snowmelt drains downhill into another body of water, such as a river, lake, or reservoir. Draw – a usually dry creek bed or gulch that temporarily fills with water after a heavy rain, or seasonally. See also wadi. Estuary – a semi-enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea Firth – (Scottish) various coastal waters, such as large sea bays, estuaries, inlets, and straits. Fjord (fiord) – a narrow inlet of the sea between cliffs or steep slopes. Gill – (UK) a narrow stream or rivulet; brook; narrow mountain stream. Glacier – a large collection of ice or a frozen river that moves slowly down a mountain. Glacial pothole – a giant's kettle. Gulf – a part of a lake or ocean that extends so that it is surrounded by land on three sides, similar to, but larger than a bay. Harbor – an artificial or naturally occurring body of water where ships are stored or may shelter from the ocean's weather and currents. Hot spring – a spring produced by the emergence of geothermally heated groundwater. Impoundment – an artificially-created