
thumb|upright=1.35|Riffle on the Onega River
thumb|upright=1.35|Riffle on the Onega River
A riffle is a shallow landform in a flowing channel. Colloquially, it is a shallow place in a river where water flows quickly past rocks. However, in geology a riffle has specific characteristics.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).