Geographers study places, and the geographer Joseph Hobbs has studied a place that holds sanctity in the three monotheistic religions, has been caretaken by Greek orthodox monks in the Egyptian wilderness, is replete with a microscopic landscape of holiness, and is now subjected to thousands of tourists each year. Mount Sinai, the Jebel Musa of the southern massif of the peninsula, has attracted hermits, ascetics, and pilgrims since the earliest generations of Christianity. Hobbs's story is a disquisition on Mount Sinai, which is, above and beyond its dramatic physical setting and curious human characteristics, a place of no small spiritual dimensions.