My little slice of heaven

Here's your bit of trivia for the day. Use it like this to impress your friends at your next party:
Did you know there are 507 million acres of public land overseen by the Department of the Interior (including the National Park Service and the Bureau of Land Management)?
And follow up with this: That's one out of every five acres nationwide.
And this: That's about 1.7 acres for every person in the United States.
(That's my 1.7 acres, at right - in Rocky Mountain National Park.)