1. Ferricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado Author/Creator: Yager, Douglas B. Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Map Edition: Version 1.1. Access & Availability: Loading
2. Isopleth maps of iron, manganese, vanadium, and related elements in stream sediments of West Virginia Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Map Distribution Resource Type: Map Access & Availability: Loading
3. Isopleth maps showing above-median concentrations of iron and cobalt in stream-sediment concentrate, Glens Falls 1⁰ x 2⁰ quadrangle, New York, Vermont, and New Hampshire Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
4. Surface materials maps of Afghanistan : iron-bearing materiala and other materials Author/Creator: King, Trude V. V. Publication/Creation: [Reston, Va.] : U.S. Dept., of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading
5. The Vermilion iron-bearing district of Minnesota, with an atlas Author/Creator: Clements, J. Morgan 1869- (Julius Morgan) Publication/Creation: Washington : Gov't Print. Off, 1903 Resource Type: Map Access & Availability: Loading