We did the Tom's Thumb Hike on the northern side of the McDowell Ranges though we accessed the rock formations from the western side, rather than the north eastern trail-head. The hike was about twelve miles in total and took us four hours to complete. The rock formation known as Tom's Thumb in the picture above is at about 3500 feet. Getting up to it is pretty strenuous, there are a mountain's worth of switch backs to get to the ridge that leads to the rocks.

It was good challenging hike.