The rowboat at Avalanche Lake belongs to the rangers. There is also one or more boats on Lake Colden.
On my first ever overnight backpack trip in 2000 (that's right!), I stayed at a lean-to at Flowed Land for two nights, but did not have any desire to climb anything (can you imagine that!?). I was checking out Avalanche Lake for the first time when I saw a man standing on a rock along the shore, about half-way up the lake. He had hurt his back while climbing the trap dike, could no longer walk, and was waiting for assistance.
As I headed back toward the south end of the lake, I saw a ranger rowing that boat, looking for that man. I directed him to the injured climber and waited at the end of the lake to help. The two men approached in the rowboat and landed, saying a helicopter was on the way. I stayed to do whatever I could in this effort, and photographed the chopper flying along the lake and landing on a tuft of grass just offshore. After helping the injured man back into the boat, I watched as the rangers (now several were there) walked the boat to the rear of the chopper and eased the man inside. It was quite a spectacle on my first backpack trip.
Anyway, the only boats up there belong to the DEC. I think the carry to Avalanche or Flowed Land would be a moderate effort, but Lake Tear of the Clouds would be much more difficult.... so I guess I want to try! Not sure when (I'm just sayin'...), but I'll be sure to let you all know if I go.