thumb|upright=1.3|The thalweg of a river
thumb|upright=1.3|The thalweg of a river
In geography, hydrography, and fluvial geomorphology, a thalweg or talweg () is the line or curve of lowest elevation within a valley or watercourse. Normally only the horizontal position of the curve is considered (as viewed on a map); the corresponding vertical position is represented in a stream profile.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).