Revision history of "Reported occurrences of selected minerals in Colorado: Includes most metals and nonmetals; does not include mineral fuels, sodium and potassium salts, or phosphate" (Q119227)
From geokb
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.