With a basin of 1433 square km and a length of 84 km, it carves an erosive tectonic valley with numerous gorges, quite deep sometimes.
2.
By definition, Greater Las Vegas is a tectonic valley, surrounded by four mountain ranges, with nearby Mount Charleston being the highest elevation at, located to the northwest.
3.
The straight river course north of Edeb�ck has been classified by Sten De Geer as a " tectonic valley " as it follows the Protogine Zone a bedrock weakness zone of Precambrian age.
4.
Another important sector is in the tectonic valley of the River Ser, at the foot of the faultline escarpment of the Corb and Finestres ranges, with the volcanoes of Santa Margarida and Croscat.