New Submarine Book

The New York Times has a review of a new book, Unknown Waters, on the 1970 Arctic deployment of USS Queenfish (SSN 651), written by her CO during that time. Excerpts:
As the book recounts, the sub repeatedly ventured within periscope range of Soviet land. In the Severnaya Zemlya archipelago, its crew examined the October Revolution and Bolshevik Islands.
The Queenfish also spotted a convoy. “I was able to see and identify all six ships as Soviet,” Dr. McLaren writes. “They consisted of an icebreaker leading a tanker and four cargo ships on an easterly course that slowly weaved back and forth through the chaotic ice pack.”
The main mission was to map the seabed and collect oceanographic data in anticipation of the Arctic’s becoming a major theater of military operations. The sub did so by finding and following depth contours, for instance, by locating the areas of the Arctic Basin where the seabed was 600 feet below the surface. A result was a navigation chart that bore the kind of squiggly lines found on topographic maps.
Looks like it might be a pretty good book.