I have some in-law relatives that live up there (they work for the oil company up in Prudhoe bay). This is exactly how they launch and recover... using a tractor like thing to manage the trailer. They used to guide fishing trips, but recently decided that just taking out folks for bear sight seeing was vastly easier. (no need to haul all the fishing gear, and no cleanup afterward)

Some of their bear videos kinda make you wonder... Selfies with grizzlies in the background.

Nice folks... young, strong, "bulletproof." Oh and they can drink you under a table sooo fast... (don't ask how I know...)