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<br /> <br />Portland Limestone Quarries (M-1977-344) Permit Amendment-02 <br />Holcim US Inc, 3500 Highway 120, Florence, CO 81226 Revised pursuant to preliminary adequacy review November 20, 2023 <br />Phone (719) 288-1443 www.holcim.us 19 <br /> <br />2.3 Exhibit C: Pre-Mining and Mining Plan Maps of the Affected Lands <br />(Rule 6.4.3)