a long winding channel cut through lava formations
A dry trench-like intermittent streambed or wash.
Long winding channel cut through lava formations. A term primarily used in the northwestern United States.
A secondary valley of a main valley. Most coulees were created by water erosion during a period of high floods but they are now usually dry. Coulees are common in southern Alberta where they were created by meltwater during the retreat of the last glaciation.
A long, dry, steep-walled, trench-like gorge or valley representing an abandoned river channel. In south central Washington, the term coulee is mostly used for an abandoned ice-age flood channel.
A coulee (or coulée) is a deep steep-sided ravine formed by erosion, commonly found in the northwestern United States and southwestern Canada. Most coulees were originally formed during the rapid melting of the glaciers at the end of the last ice age. Some coulees are dry for most of the year; others may contain small streams.
