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Permit Amendment — Cemex Sandstone Quarry <br />Cemex Sandstone Quarry <br />Permit M- 1977 -361 <br />Exhibit A — Legal Description <br />A -1 Legal Description <br />The Cemex Sandstone Quarry is located 0.5 miles southeast of Lyons, Colorado in Boulder County. The <br />site address is 12993 North Foothills Hwy, Longmont, CO 80503. The property is located in the SW % of <br />Section 20 in Township 3 North Range 70 West and includes a total of 35.78 acres according to the Boulder <br />County Assessor's Office. A 2011 survey of the property boundary completed by Flagstaff Surveying Inc. <br />is included as Figure A -1 and shows specific coordinates for property corners. Since the original permit was <br />submitted in 1977, 115 acres of the originally permitted property boundary were transferred to Boulder <br />County. <br />A -2 Affected Area Description <br />The affected area encompasses a total of 9.99 acres and is clarified from the current permit. The affected <br />area is shown on all of the Figures in Exhibit E — Maps. <br />A -3 Main Entrance Location <br />The main entrance to the Cemex Sandstone Quarry is located at Northing 4451061.829, Easting <br />478354.896; North American Datum (NAD) 1983, Universal Transverse Mercator (UTM) Zone 13N, <br />measured in meters. Figure B -1 (Exhibit B) shows the location of the main entrance on a topographic map <br />in accordance with CMMRR §6.4.1(2). <br />Exhibit A A -1 March 2014 <br />