Laserfiche WebLink
processing, or backfilling and other reclamation related activities. The remaining area will <br /> consist of setbacks and road and utility right-of-ways. <br /> Land Uses <br /> The proposed permit area currently consists of rangeland utilized by the owner's cattle and bison <br /> operations. With the exception of the community of Carr, properties surrounding the proposed <br /> Carr Pit East site are primarily aggregate mining and rural agricultural non-irrigated rangeland. <br /> The community of Carr includes approximately 30 to 40 semi-rural residential home lots south <br /> of the site. Immediately to the west is a permitted aggregate mine (M-2014-001) and to the <br /> southeast is another permitted aggregate mining property (M-1988-048) and railroad load-out <br /> yard. <br /> With the exception of the Tri-State Generation and Transmission Association high-voltage <br /> transmission lines and easement, the interior of the property does not contain structures, <br /> easements, or right-of-ways not owned by the applicant or property owner. There are no <br /> established oil and gas wells, tank batteries, or other associated facilities located on the property. <br /> Several utility structures and associated easements and right-of-ways are located on the edges of <br /> the property or immediately adjacent to the proposed permit boundary including Nunn <br /> Telephone Company communication lines, Weld County road right-of-ways, Poudre Valley <br /> REA power lines, and the Union Pacific railroad (see Exhibit C-1, Existing Conditions Map). <br /> None of the easements, right-of-ways, or associated structures are expected to be negatively <br /> affected by mining or reclamation operations. <br /> Nature of Deposit to be Mined <br /> The proposed permit area is located where the northern edge of the Colorado Piedmont <br /> transitions up to the High Plains of southern Wyoming. The western most boundary of the Lone <br /> Tree Creek basin originates in the Laramie Range of the Rocky Mountains and drains southeast <br /> across the relatively flat High Plains and down through the gently rolling topography of the <br /> Colorado Piedmont. Aggregate materials within the proposed permit area are composed of <br /> Pliocene and Pleistocene terrace deposits along the Lone Tree Creek drainage system. The <br /> terrace deposits generally extend from the surface or near-surface to a variable depth of 8 to <br /> 12 feet below the ground surface. <br /> Deposition was most likely created by streams that had been rejuvenated as a result of uplift at <br /> the close of the Tertiary period and increased water supply during the Pleistocene epoch. The <br /> under-lying Tertiary sedimentary rocks that include consolidated sand and gravel conglomerates <br /> were eroded, and the process of cutting and filling of channels was so widespread that gravel and <br /> sand were deposited in sheet-like beds. The principal streams eroded into the bedrock, cutting <br /> and building terraces along the channels. More recent streams, such as Lone Tree Creek in the <br /> proposed permit area, have cut through the highly erodible over-lying unconsolidated material in <br /> most areas and do not generally have associated alluvial deposition. <br /> Traditional organic topsoil on most of the site is thin or non-existent. Most of the soils are <br /> shallow to deep loams that are well drained. Over most of the identified sand and gravel deposit <br /> Carr Pit East <br /> DRMS 112 Permit Application Page 5 <br />