On April 3 Arizona Peakbaggers Meetup members Eric Kassan, Richard Hensley, Kay Komuro, Maymay Au, Fan, and I attempted to climb Pinnacle Ridge. Pinnacle Ridge is rarely visible for those who stick to highway travel across Arizona, but has 7550 feet of elevation and 2470 feet of prominence, making it the 40th most prominent peak in Arizona. We encountered much more brush than we had expected which slowed our progress considerably and with member time constraints we eventually had to turn around well short of the summit.
My first view of Pinnacle Ridge was on the previous day from the summit of Mount Turnbull. Pinnacle Ridge is hidden from highway views except for possibly a short section of US 70 west of Safford, AZ. From Mount Turnbull it appears to be a remote, compact, and rocky mountain range to the south.