BENHAM TRAIL
BENHAM TRAIL Williams Aspens near the summit of Bill Williams Mountain Heading west from Flagstaff on Interstate 40, the distinctive profile of Bill Williams Mountain juts over sprawling prairies criss-crossed with railroad tracks and remnants of Historic Route 66. The mountain's lumpy appearance is the result of multiple volcanic events that caused lava to accumulate in irregular heaps. The eruptions that occurred roughly 4.2 to 2.8 million years ago mark the western edge of the San Francisco Volcanic Field---an arc of molten rock relics that includes San Francisco Mountain (Humphreys Peak) stretching from Williams to north east of Flagstaff. Mountains like this one are just too tempting not to conquer. Because it's there, three ways to get to its summit have been established. You could drive to the top on the dirt road, but what fun is that? A more entertaining way up is to hike one of the single track trails. Although both routes are about the same length, each offers a ...