The reason they are public is because no one actually has a use for them
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You just mentioned grazing leases moron.
How they connect the panels to the power grid ?
Unicorn/tesla waves ?
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You are correct. My statement was inaccurate.
The reason the western areas are public lands is because no one bought them. They were offered for sale to be homesteaded but were not.
Some of the undesirable land is however suitable for grazing and is leased for that purpose