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I MA <br />The Golden Eagle Mine is located on the western limb of the Raton Basin. The Raton <br />Basin is a broad, asymmetric syncline, the axis of which trends generally north-south. <br />All mining activities occur in the Raton Formation where the Maxwell seam is located. <br />The Poison Canyon formation unconformably overlies the Raton Formation and has a <br />thickness of approximately 200 feet in the mine area. Unconsolidated Quaternary <br />alluvial and colluvial deposits overlie the Raton Formation in the low-lying areas. <br />The Raton Formation dips approximately two degrees east-northeast. The permit area <br />contains one steep, normal fault trending east-northeast with vertical displacement of <br />25 feet. <br />The rock strata in the region can contain groundwater, but are not a significant source <br />of water in the area of the mine. Typically bedrock groundwater is perched and usable <br />sources are unreliable for most uses. Igneous intrusions can cause impermeable <br />boundaries that act as barriers to groundwater migration. The Purgatoire River is the <br />main surface water drainage in the region. Its headwaters originate west of the mine in <br />the Sangre de Cristo mountain range. Eventually, the Purgatoire flows into the <br />traditionally remote areas.