Bastak Nature Reserve (Russian: Бастак заповедник) (also Bastack) is a Russian 'zapovednik' (strict nature reserve) located in the Amur River basin in the Russian Far East. The reserve's territory covers the south-eastern spurs Bureya Range and the northern outskirts of the Sredneamurskaya lowlands. The reserve is situated in about 10 km north of the city of Birobidzhan in the Birobidzhansky District, and is the only national reserve in the Jewish Autonomous Oblast. The reserve can be pictured as divided into two halves, mountainous to the northwest, lowlands to the southeast. The highlands of the northwest are south-eastern spurs Khingan-Bureya mountain system, an ancient crystalline massif. The southeast lowlands of the reserve are part of the Sikhote-Alin Mountain fold system. The mountain ridges run north–south, which is typical for the Far East. In the north of the reserve, the mountains range up to 1,207 meters in altitude (Mt. Byrdyr), with an average altitude of 800 meters; the slopes are steep and the river valleys deep. To the south, the altitudes average 400–500 meters, and the terrain is hilly with more rounded and flat tops than steep valleys. The lowest areas at 200 meters are alluvial floodplains. More information...
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