They have the authority, but do they have the duty? Also, "could" doesn't mean that they do. From your very own link: "States can obtain authority to own and

They have the authority, but do they have the duty? Also, "could" doesn't mean that they do. From your very own link: "States can obtain authority to own and manage federal lands within their borders only by federal, not state, law. Congress’s broad authority over federal lands includes the authority to dispose of lands, and Congress can choose to transfer ownership of federal land to states. States have legal authority to manage federal lands within their borders to the extent Congress has given them such authority. As an example, Congress has to a large extent allowed states to exercise management authority over wildlife as a traditional area of state concern. Congress could give states authority to manage certain other activities, resources, or other aspects of federal lands. Congress also could give federal agencies authority to delegate or assign responsibility for aspects of federal land management to states or other partners."