Here is the latest beta from a friend who lives in Wyoming:
"My 2 boys and a friend just got back from a failed attempt on Gannett. They failed due to an injury and a fall in Bomber creek that ruined and took some gear. So here is what they said.
"The Mosquitoes are very bad" and they have mosquito suits.
"The Creek crossings are treacherous" keep to the "New" Glacier trail, not a good idea to attempt the old trail.
They talked to a group that climbed Gannett and they said it was cold but very nice, this years snow still covers most of the ice up the glaciers for good traction and enjoyable walking, bergschrund is buried in snow and easy to cross. .
The high streams are from snow melt, and will probably be high all summer. You won't have any problems with them, it's just a matter of getting wet feet or a long walk finding an easy route.
The old trail goes right up the hill from the trailhead and yes it is the trail the outfitters use, you can see the switchbacks way up the mountain from there. We usually take the old trail since it is faster and avoids the hugh hill climbing out of Bomber Basin with its infamous switchbacks, but you have to ford Bomber creek which is very difficult now. there is a bridge on the new trail so the only fords will be in the Dinwoody valley on Klondike and Gannett creeks.
If you are looking for a good camp spot Honeymoon lake is great and our usual camp on the way out. You can walk from there to the trailhead in 1 day. If you stop there look for the carvings on the big camp log our names are on it from our first Gannett climb in 1984. : )
My 2 sons have been in that area 10 or 15 times, so when they say the mosquitoes are bad they must be REALLY bad so brings lots of deet.
It looks like the weather should be great for your trip. Have FUN! "
I will be looking for you guys on the trail. Hopefully the mosquitoes will no longer be hungry as you guys are going through first.
Good luck and be safe!