I did this loop without the summit in May on a trip to The Park and Pete's Pond. Long wait through the endless summer to have another go. Assuming I couldn't make the drive to Mineral Creek TH, I built the summit into the loop from City Creek TH. Went counterclockwise for a more gradual ascent.
Started on the northern end of the Mazatzal Divide Trail. Best stretch the 3 miles of leveling off after the Red Hills jct 6 miles in. Good shape the whole way to The Park. Didn't take the extra time to saunter that way or down to Pete's Pond.
I found North Peak Trail to be in better shape on the upper end than it seemed in the spring. Had an easier time finding the grade, and there were more ribbons and cairns than I remembered. Still in rough shape. Eventually turned off the trail toward North Peak when it seemed like less of a bushwhack. Bumped back into the trail where it descends down the side of the mountain and left it once again.
I took the ridge from the trail to the saddle SW of North Peak. It was much clearer than expected and about a moderate bushwhack. It is quite steep, however. Small stands of pines survived on the saddle and higher on the ridge. Was about 12 miles to the summit the way I came. Tenth Mazzie summit and to me the views are as good as any in the range shy of Mazatzal Peak or the Four Peaks.
Went down the ridge to the NW. This route is more traveled, and I'd think the way most folks are getting up is using the NW ridge from Mineral Creek TH. Also not such a bad bushwhack with a little, avoidable scrambling.
North Peak Trail down to the trailhead is steep and slippery but all things considered is in good shape. A little water flowing in Mineral Creek.
Connected the two trailheads again with Pollow Hollow. Had an easier time than in May and followed more of the track than the creek. Travels through the longest bit of forest on the route. Got back as the clouds were rolling in and didn't see anyone on the day.