A couple of weeks ago there was a thread posted here that contained a common theme: Moving to Alaska/where can I establish a trapline, etc.
At the time of the post I was trying to find a link to a good map that showed general land ownership in Alaska, I knew this link existed, I stumbled across it this morning while registering a guide use area. You can zoom in on any area and generally identify ownership down to a particular section (640 acres):
https://www.commerce.alaska.gov/web/cbpl...seAreaMaps.aspxScroll sown the page and you'll see that the State has been broken into five regions. There is a map legend on each page, but generally it works out like this:
Green in southeast is US Forest service; you can trap there but no cabin building on USFS land.
Green in the rest of the State is either US Fish and Wildlife Refuge, or US National Park. You can generally trap on USFWS land but no cabin building. Trapping is generally closed on USNPS land with some exceptions.
White is BLM (Federal), trapping is allowed, I think cabin building is restricted, but I'm not too sure of the regs.
Blue is State of Alaska, trapping is permitted, and trapping cabins are allowed with a modestly priced permit ($100 for ten years).
Pink is private land, generally Native Corporations; both regional corps and village corps. Trapping by non corporate members is regulated by the individual corporate entity; there are many. Many of the entities are really uptight about non members use of their lands, a couple of the entities are more laid back about it. Many times, for all practical purposes, there aren't really any cut-and-dried regulations that are enforced. It depends on personalities both yours and theirs.
Within all of the lands mentioned above are small parcels of individually owned private land. If you purchase a piece of private land within a particular area you can pretty much build whatever you want.