"Salt of the Earth" by Debra Martz
I spotted this lone rock on the salt-covered ground of the Salt Plains National Wildlife Refuge.
This 32,197-acre refuge located in north-central Oklahoma, is made up of a variety of habitats such as wetlands, prairie, and about 12,000 acres of salt flats. And there is a hidden treasure; hourglass selenite crystals that you can dig for free.
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