watercourse pup run TGN:21163 Geonames:H.NRWS race gulch rivulet water gap kill EcoLexicon:ravine gutter tideway rill TGN:21110 gully EcoLexicon:culvert ravine FTT:105 seaway EcoLexicon:brook gut dredged channel runnel wash EcoLexicon:waterway stream EcoLexicon:spillway Geonames:H.WTRC Geonames:H.RCH seachannel TGN:21133 narrows A flowing body of water. TGN:21131 TGN:21499 TGN:21137 reach Geonames:S.SPLY passage EcoLexicon:course https://en.wikipedia.org/wiki/Watercourse EcoLexicon:gully fork culvert lode spillway overflow channel lotic water body