hidden Okhta River, the OKHTA (Finnish “bear river”), a river in the Karelian Isthmus, largest right-hand tributary of the Neva. Length: 90 km, width: – 30-40 m, predominating depth: 0.5-1 m, max. depth: 5.5 m. Basin area: 768 sq. km. Average flow rate at the mouth: 7.2... more