Ushkovsky (, formerly known as Plosky) is a large volcanic massif located in the central part of Kamchatka Peninsula, Russia. It is located at the northwestern end of the Klyuchevskaya Sopka volcano group. These volcanoes are also set in a chain linked formation. The highest peak of this massif is Krestovsky (4108 m). Krestovsky is a stratovolcano, Ushkovsky is a shield volcano.