A sign marks crystal digging area at Salt Plains Refuge

An orange sign on a post in the ground marks the area for crystal digging at Salt Plains Refuge.
Photo By/Credit

USFWS

Date Shot/Created
04/05/2022
Media Usage Rights/License
Public Domain
Image
A sign marks crystal digging area open to the public at Salt Plains National Wildlife Refuge in Oklahoma.
Facility
Salt Plains National Wildlife Refuge
Ecosystem
Marine
Subject tags
Geology
Recreation
Rocks
Wildlife refuges