For a good mystery:
Murder on the Iditarod Trail by Sue Henry
It was not only an exciting mystery but also an exciting race. It was fun to find out who-dun-it and to see who would win. It even had a map so you could follow along as the race progressed. It reminded me of:
Last of the Breed by Louis L'Amour
Which was another race/chase type of story set during the cold war. Very good. Mr. L'Amour was famous for his acurate detailed depictions of his settings. Another author does the same in her books:
A Superior Death by Nevada Barr
Ill Wind by Nevada Barr
Liberty Falling by Nevada Barr
These are three of hers I have read so far and I really like them. Each book is a mystery that takes place in a different U.S. National Park where her heroine is a park ranger. She describes these parks in such great detail that the setting becomes an intregal part of the story.
Enjoy.
Tammy