Tunguska province

The Tunguska province was a region of Russia.

In 1908, the region experienced a mysterious explosion that denuded a forest in and around the Tunguska Basin. The explosion was never completely explained. One account said that the TARDIS had split in half, then time rammed itself. (PROSE: Birthright) According to another, a 21st century human named El Ape accidentally set off a nuclear explosion in the valley while travelling with the Seventh Doctor in search of the Monk. (COMIC: Follow That TARDIS!)

In any event, the Tunguska Scroll was discovered in this Earth region. (TV: Enemy of the Bane)

At some point in the early 20th century, a Sontaran scout ship was believed to have crashed in Tunguska. The wreckage was obtained by UNIT and kept in the Vault. (AUDIO: Tales from the Vault)