| Upper Angara | |
| Source1: | Delyun-Uran Range Stanovoy Highlands |
| Source1 Coordinates: | 56.6142°N 113.7558°W |
| Source1 Elevation: | 1600m (5,200feet) |
| Mouth: | Lake Baikal |
| Mouth Coordinates: | 55.7067°N 109.8758°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 438km (272miles) |
| Discharge1 Avg: | 258m3/s |
| Basin Size: | 21400km2 |
| Pushpin Map: | Russia Buryatia |
| Pushpin Map Caption: | Mouth location in Buryatia, Russia |
The Upper Angara (Verkhnyaya Angara;, Deede Angar) is a river in Buryatia, Siberia to the northeast of Lake Baikal. the third longest river in the Baikal basin. It is long, and has a drainage basin of .[1]
The Baikal–Amur Mainline runs along the north side of the river northeast up its valley, crossing between Anamakit and Novy Uoyan and crossing the river a second time upstream before heading into the mountains.[2]
The Upper Angara rises at about 1600m (5,200feet) in an area of small glacial lakes of the Delyun-Uran range, right by the Northern Muya Range, Stanovoy Highlands. It its upper course the river flows in a WSW direction across mountainous terrain, with rapids and waterfalls. It enters then a floodplain and crosses the spurs of the Upper Angara and the Barguzin ranges. Near Yanchukan it flows through the Upper Angara tectonic basin. Finally it ends in Lake Baikal forming a delta in the shallow northern end of the lake, separated from the deep part by long sandy spits, including Yarki Island. The Upper Angara is navigable in its last stretch.[3]
The main tributaries of the Upper Angara are the 64km (40miles) long Angarakan, the 87km (54miles) long Yanchui, the 124km (77miles) long Churo and the 245km (152miles) long Kotera.[1]