Laserfiche WebLink
by selling gravel outside of the normal sales area, such <br /> as in Denver. One of the primary objectives of this <br /> mining plan, however, is to provide gravel products for <br /> use in Boulder county. Thus, the total mining period <br /> is lengthened because the market area is decreased. <br /> In addition to assuring the availability of a high quality <br /> gravel resource, the decision to sell the gravel chiefly in <br /> the local market ensures that the cost of transporting the <br /> gravel is minimized. The cost'of transporting gravel 10 <br /> miles is approximately equal to all costs of processing, <br /> which nearly doubles the cost of gravel to the customer. <br /> Close-in graveling of high quality gravel deposits is <br /> • much more economical for the processor and, therefore, <br /> the customer. <br /> By targeting the resource primarily for local use, the <br /> magnitude of the activity at the site is decreased. There <br /> is an advantage to the neighborhood in keeping traffic <br /> and hours of operation at a more compatible level . <br /> Mining Operations <br /> Method. Sand and gravel mining operations across the country <br /> • vary widely in the methods used for extraction. Variations <br /> are due to topography of the site, depth and thickness <br /> of the gravel deposit, height of the water table, quantity <br /> B-3 <br />