It depends on how much time you have available. There are nearby trails that can be hiked which would extend your time. An hour would be a good starting point, though.
Only 1-2 hours, depending on how much you read and time spent on hands-on exhibits.
Our tours generally take at least an hour - depending on how many questions you have, whether or not children take part in the Kids Dig, and how many photos you might take!
2.5 to 3 hours. You need to plan on touring both facilities.
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