This short article in Pravda online claims that scientists in the CRS have discovered a stone slab over 120 million years old which contains a relief map of the Urals region and inscriptions in an unknown language. The maps also contain some civil engineering features, including dams and a series of irrigation channels of some sort.
The 1 ton slab – which was originally located by Professor Alexandr Chuvyrov of Bashkir State University – has apparently been radio carbon dated and x-rayed to try and verify it’s authenticity and the researchers are still trying to work out where it comes from and how it could have been created.