Sudoku on the Trail The trail continues... This series of Sudoku puzzle books will take you on the trail to all 53 of the peaks which stand above 14,000 feet in the Colorado Rockies, hence '14ers.' There are 11 books in the series, 2,240 puzzles in total, more than enough to keep you entertained in the evenings as you contemplate your next hike tomorrow. These books are formatted to take with you on your quest, fitting...
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