A Rockport State Park ranger said the Sauk Mountain Road had been regraded recently, and it was OK, no deep potholes; but it is narrow and steep. It climbs most of the mountain, in fact. The toilet at the trailhead had been cleaned, too. The trail is fine and has great views all the way: Mt. Baker, Mt. Rainier, Glacier Peak, the Skagit Valley, and many others. Some hardy bugs were buzzing around, but they seemed busy with other matters than going after people. This is not the trail to experience the solitude of the wilderness! BTW, if driving up from Seattle, you can take Hwy 530 from Arlington to Rockport, turn west at the junction with Hwy 20, and just past Rockport State Park, turn right on Sauk Mtn road. I think this is more scenic than going up to Mt. Vernon.