Very little snow on this hike made for a fairly straight forward effort. We followed the service road that leads to some FAA equipment on a sub peak (10,818)to about 10,200 before we broke off of the road and headed cross country. The road heading up was snow free until about 8700 feet where at that point we used snow shoes up until we headed cross country. We worked our way up steep south facing slopes that were quite dry up until a false summit on the summit ridge. From there it was an easy traverse on rock and snow to the top. Benchmark and summit register (if there is one) was under about five feet of snow, while the reference marker indicating the BM to the north was dry and exposed.
Hiked up the road from here (elev 7888 feet). On the way up, bypassed the FAA station and went up the fire-burned chute, starting just below the final big switchback in the road. Went past the FAA station on the way down.
Pennell's summit had a funky USGS benchmark that stood on a pole about a foot above the rocky ground.
Summertime isn't the best time to do some of these desert peaks (90 degrees) but by going slowly and drinking lots of water, we hiked the 9 mile round tripper and came out fine. This is a neat peak and the views are expansive. We went up a road for a good portion of the hike with the last part following a rough path up to the summit. I was with my son in law on this one.