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Title: One of the most exciting and readable books about spelunking
Review: Herb and Jan Conn were amateur climbers in the 1930s who fell in love with the Black Hills of South Dakota. At a friend's suggestion, the Conns began moonlighting as spelunkers in winter. When they first visited Jewel Cave, it was a tiny cavern with an intriguing unexplored passage. Luckily for the Conns, that passage led to a mile of unexplored cave passages, then two miles... and exploring Jewel Cave became the Conns' life's work. They describe the exciting exploration (which is still ongoing, with more than 100 miles of passages mapped) with just the right balance of action/adventure, science, and humor. This book is a pioneer of the outdoor/geography genre and is readable, fun and fascinating.-Review by David Bezanson
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