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access_condition
The organization that has made the Item available believes that the Item is in the Public Domain under the laws of the United States, but a determination was not made as to its copyright status under the copyright laws of other countries. The Item may not be in the Public Domain under the laws of other countries. Please refer to the organization that has made the Item available for more information. http://rightsstatements.org/vocab/NoC-US/1.0/
Rights
false
Annotations:
Approved mineral surveys of the principal mining districts in Boulder County, Colorado