Coordinates: 56°19′N 160°50′E / 56.317°N 160.833°E
Klyuchi (Russian: Ключи́) is a rural locality (a settlement) in Ust-Kamchatsky District of Kamchatka Krai, Russia, located on the Kamchatka River, 30 kilometers (19 mi) to the north of Klyuchevskaya Sopka volcano. Population: 5,726 (2010 Census);7,073 (2002 Census);11,251 (1989 Census)..
The settlement is located near the point where the course of the Kamchatka River turns from north to east.
It was founded in 1731. In 1951, it was granted urban-type settlement status and in 1979—town status. In 2004, it was demoted to a rural locality in order to become eligible for increased funding from the Russian federal budget.
Klyuchi, being in a very isolated part of the former Soviet Union, has been near an intercontinental ballistic missile testing range since the Cold War, the Kura Missile Test Range, and is served by Klyuchi air base just southwest of the town. Klyuchi's original airfield consisted of a dirt airstrip and was located 8 miles east-southeast of the town. It was abandoned in the 1960s and is being reclaimed by forest.