Siberia and the Far East from the Omsk Region to Vladivostok via Lake Baikal, the Amur River, and the Sakha Republic.
Over 6,000 km of roads.
60 cities.

Several connections with various maps:
SibirMap
Off the Grid
Altai Map (requires a separate RC, starting with Altai 1.7)
Beyond Map (Road to Asia)
Amur Map

Removed areas that conflicted with SibirMap
Bug fixes

Credits:
kwigdulah