Lots of truth above. I pack in 27 for a month plus a year (usually in 2 trips), but I don't even mess with elk hunting there. The elk are very sparse, and smart. Where I go in the Frank, driving out in October would be questionable, so I hunt elk elsewhere where there are a lot more elk. Be careful if you cross a big stream that it may not be crossable after some far off rain. And, if you fall in a large stream there's a good chance of getting pushed under a log jam. Tons of deadfall in the streams, and the streams can be more like rivers. Lastly, don't keep the cutthroats or bull trout if you're fishing, as they're threatened or endangered.
Good luck, and if you guys kill an elk in there then be proud you did! I wouldn't pass up any legal elk...