Simplify the following text for a Grade 10 native English-speaking person.
Original: Land in Southwest Alaska is owned and managed mainly by the Federal government , the State of Alaska , and Alaska Native Regional Corporations including Calista , Cook Inlet , Bristol Bay , Aleut , and Koniag . There is little private land , other than that owned by the Native Corps .
Simplified: Most of the land in Southwest Alaska is owned by the Federal government , the State of Alaska , and the native corporations .