Mount Sugarloaf
Deerfield, Massachusetts
Spotted several of these on my way down the mountain. They seemed to favor the log railing bordering the tower road.
"This butterfly may be seen flying near houses, gravel driveways (✅), near water, muddy places, gardens, and woodlands. Its only host plant is hackberry trees." -- Wikipedia
A couple of the other "passengers" taking the Jamestown Scotland Ferry across the James River last night.