There are three other aspiring 46ers who summit just behind us (including one guy named Dave, and one for whom Gray is his first 46er peak). Other than that, we are alone.
The Trio of 46ers on Gray's summit
We decide that a traverse over to Marcy from here is much more interesting than heading back down to the trail and around (plus much shorter). There also seems to be a faint but reasonably followable herdpath marking the traverse, so we decide to go for it.
Marcy from Gray, wide-angle
The herd path turns out to be quite scenic, with periodic viewpoints. Gray is turning out to be a much nicer peak than I had expected. A few tangly spots, but with no major problems, and we reach treeline on Marcy, marked by a small cairn (in case you need to do this route going the opposite way). Trailless alpine hiking in the Adirondacks, an extreme rarity, now presents itself to us. The final bit of ascent up the alpine terrain on Marcy is spectacular (and we carefully keep to the open rock to avoid damaging the vegetation), and we take a ton of photos!
Andrew on traverse from Gray to Marcy