Camelback Mountain, a 2,704-foot peak that bears a remarkable resemblance to a kneeling camel, is one of Phoenix's most visible and cherished landmarks. From the city's earliest days, Camelback has been a magnet for promoters and developers, drawing Phoenix's most colorful characters to it either for profit or rest. But these modern dreamers were not the first to come under Camelback's spell. Many centuries ago, the earliest known inhabitants of the...