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INTRODUCTION <br />The proposed Lone Tree Pit is located approximately 3.5 miles northeast of Pierce in Weld <br />County, Colorado. The site is bordered by dry land farming on the east south and west. To the <br />north is a gravel pit operated by Weld County Public Works and to the southeast is an exhausted <br />gravel pit in the reclamation stage which is also operated by Weld County, <br />The topography for the site slopes to the Lone Tree Creek which runs from north to south <br />through the site. This creek is dammed in several places upstream and rarely sees any flow. All <br />mining will be conducted above the ground water table. The operation will mine sand, gravel and <br />clay from an alluvial deposit of Lone Tree Creek up to a depth of 20 feet for the production of <br />road base. The estimated production for the site is 150,000 tons per year. <br />Of the total permit area of 40.02 acres, approximately 8.74 acres has historically been mined for <br />road base. The approximate outline of the previous disturbance is shown on Map C-1. The <br />previously disturbed area will be graded to a maximum slope of 3H:1V and the pit floor will be <br />graded to match the rest of the mined out pit. There was no topsoil salvaged from the previous <br />operator. All existing trees will remain in place after mining and reclamation. <br />The permittee and landowner for this site is Miller Family Investments. <br />The site will be reclaimed to a land use of rangeland which is the current land use. The <br />topography of the reclaimed land is shown on Map F. <br />Lone Tree Pit, June 2009 i-1