Last of the Breed by Louis L'Amour
Written in the 1980's about a USAF pilot forced down in Soviet airspace and sent to a special prison camp near Lake Baikal in Siberia where information is extracted from prisoners that would help the USSR in political, scientific, and military areas of interest. The pilot is part Sioux indian and escapes and makes his way east across Siberia living off the land, heading for the Bering Strait in hopes of returning to the United States.
Interesting book and a bit of a departure from L'Amour's usual subject. One thing that is a bit anachronistic is that early in the story the pilot states that he is a member of the United States Army Air Corp. The USAAC changed to the US Air Force in 1947. Kind of strange to make that kind of remark. You can tell the story takes place in the 1980's because Gorbachev is mentioned as a leader of the USSR and the Soviet incursion into Afghanistan is mentioned.
§Doug§ AC000000 Eamus Catuli!!!!
Audere est Facere
"Reality is that which, when you stop believing in it, doesn’t go away." Philip K. Dick