Why does Kodiak Island Borough contain a strip of the mainland?

[Aurelius2]

This strip is uninhabited except for a wilderness lodge. Can't find anything on why it is part of Kodiak Island Borough instead of Lake and Peninsula Borough.

Yes, there are bear viewing flights that go there from Kodiak, but I'm sure they go there from King Salmon and Brooks Camp too.

[Electric Circus]

Why would the land on the other side of the Shelikof Strait not belong with the borough that contains Kodiak and smaller adjacent islands? It's even less accessible from elsewhere and has historic ties to the island by way of fisheries and Russian settlements.

On the mainland, adjacent Lake and Peninsula Borough has a far smaller population. None of its principle settlements are particularly close to the strait.

Lake and Peninsula is also majority native, unlike Kodiak, and Kodiak was organized several decades earlier. Kodiak was carved out of Alaska's Unorganized Bureau just a few years after the creation of the latter by statute in the early sixties. Lake and Peninsula Borough only dates back to 1989.

I'm sure that there are interesting details to be researched regarding just how the boundary was set, but the points appear to line up with ridges and watershed boundaries.

[President Punxsutawney Phil]

So if it lost these territories on the mainland, would you say it would have been...stripped of them?