Bolshoy Patom

Bolshoy Patom
Большой Патом
Bolshoy Patom river course map section
Mouth location in Irkutsk Oblast, Russia
Location
CountryRussia
Physical characteristics
Source 
  locationPatom Highlands
  coordinates58°50′24″N 115°26′45″E / 58.84000°N 115.44583°E / 58.84000; 115.44583
  elevation842.5 m (2,764 ft)
MouthLena
  coordinates
60°02′23″N 117°18′10″E / 60.03972°N 117.30278°E / 60.03972; 117.30278
  elevation
145 m (476 ft)
Length570 km (350 mi)
Basin size28,400 km2 (11,000 sq mi)
Discharge 
  average350 m3/s (12,000 cu ft/s)
Basin features
ProgressionLenaLaptev Sea

The Bolshoy Patom (Russian: Большой Патом), "Big Patom", is a river in Irkutsk Oblast, Russia. It is the 11th longest tributary of the Lena with a length of 570 kilometres (350 mi) and a drainage basin area of 28,400 square kilometres (11,000 sq mi).

Bolshoy Patom village is located by the riverbank in its lower course. Tourists visit the Bolshoy Patom river mainly for rafting and kayaking. In the International scale of river difficulty the Bolshoy Patom is a Class III and IV river. There are picturesque white limestone cliffs flanking a number of stretches of the Bolshoy Patom.