Sediment from hydraulic mining detained by Englebright and small dams in the Yuba basin
Barrage ; Bassin-versant ; California ; Ecosystème aquatique ; Etats-Unis ; Exploitation minière ; Gestion de l'environnement ; Or ; Pisciculture ; Qualité de l'eau ; Sierra Nevada
of mercury in sediment and fish tissues in the watershed are briefly reviewed. Third, historic data on 20th century hydraulic mining are presented that document numerous small dams built in the Yuba basin to detain mining sediment. Finally, field measurements
of the texture and lithology of modern bed materials in the Yuba River basin are presented that demonstrate reworked sediment from mining is an important component of the modern sediment load and fine spawning gravels.