White Mountain Region, Moscow, Russia

Definitions of "mountain" include:
• Height over base of at least 2,500 m (8,202 ft).
• Height over base of 1,500 m (4,921 ft).–2,500 m (8,202 ft). with a slope greater than 2 degrees
• Height over base of 1,000 m (3,281 ft).–1,500 m (4,921 ft). with a slope greater than 5 degrees