Ogasan

Ogasan is a nature reserve around Mount Oga, which rises to 1,204 m and straddles Hwapyong County in Chagang Province and Kimhyongjik County in Ryanggang. It covers about 6,000 ha, including 800 ha of old-growth forest^[1].

The reserve holds more than 1,330 species of plants and animals, with both boreal and temperate life, and BirdLife International lists it as an Important Bird Area^[1].

Forest types change with elevation, moving through broadleaved, mixed and coniferous zones. Trees include Mongolian oak, yew, linden, Manchurian fir and Jezo spruce, and the oldest, a yew, is estimated at 1,100 years. Medicinal herbs such as asiabell, barrenwort and mountain peony grow on the mountain^[1].

Mount Oga is a forested mountain massif rising to 1,204 m in the highlands of northern Korea.

The northern highlands of Chagang and Ryanggang have cold, snowy winters and short summers.

Five trees in the reserve are designated living monuments, including a Mongolian oak of about 700 years and a Korean pine of about 550^[1].

The row records the reserve as established in 1976, and it is classed as a national park and nature reserve^[1].

The main attractions are the old-growth forest and its ancient trees, including the 1,100-year-old yew^[1].

The nearest city in the row is Kanggye, about 70 km away.

The old-growth forest, the five living-monument trees and the Important Bird Area listing are the reserve's main protected values^[1].