What an amazing gem of a hike this turned out to be!!!
The massive cliffs, many different varieties of cactus, stunning peaks and rock formations, narrow canyons, not to mention the three Desert Bighorn Sheep I encountered on the ridgeline. The guide lists it as 5 mile to the peak taking the Bull Pasture trail on the way up with an added 1/2 mile from taking the very scenic Estes Canyon trail at the junction on the way back (this junction in only at the beginning and would make a nice 4 mile alternative loop). The drive from PHX to the visitor's center was 2.5 hours with an additional 0.5 hours on the Mt Ajo scenic drive to the TH.
The hike was definetly worth the 3 hour drive and its just tough to put into words how much I thoroughly enjoyed it. I ran into about a dozen people hiking the lower loop and some made it up to Bull Pasture, but I only ran into one other guy making the trek up to the peak itself. The sweeping views from the peak include the ridgeline of this range (many other peaks, towers, and canyons), countless other ranges & peaks in the vacinity, a shiny spot on the horizon to the SW that 'may' have been the Gulf of Baja California or just a dirt cloud, and a distinctive peak to the east that was most likely Baboquivari.
On a side note, there is a makeshift Border Patrol station just north of the monument that didn't think too highly of my loaded shotgun in the trunk. But everything is legal (myself, my car, and the shotgun) and the dogs of course didn't smell anything, so I just sat back and tried my best to hold back a smirk. If the border was more secure, I wouldn't even think of bringing a loaded weapon to a National Monument (I know, illegal as well).....