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Additional Sheets 2000 Annual Report Coal Creek Resources M-1988-044 Centennial Materials, Inc. Anniversary Date: March 28 RECEIVED MAR 21 2000 ~rv~sicn of Minerdha & Geob9Y Overview of Permit Year: During the 1999/2000 operating year all activity occurred in the Upland Mining area and in the northern section of the South Lowland Mining area. Currently about 36 acres of the Upland Mining area has been placed in either final reclamation or prepared for seeding. Annual Report Maps: There are three annual report maps included in this report. Map 1 provides the information for the South Lowland area which is basically a stream bed operation. The area of affected land has indistinct and difficult to determine boundaries, especially in the Process #1 area. Therefore, the affected land area of 29.24 acres may be somewhat high. The southern half of the indicated affected land has very little disturbance. phis area is basically as was reported in last year's annual report. Map ~ shows the entire affected land area in the Upland Mining Area, but the main part of the operation should be examined only with reference to Map 3 which shows the different types of affected land as an enlarged detail of the general affected land category on Map 2. As Map 3 shows, approximately 45% of the affected land shown on Map 3 was placed in revegetation in 1998 or is ready for seeding in 2000. A new area in the southern portion of the Upland Mining Area was opened in the last year and is shown on Map 2 only. This area is discussed later. Affected Lands: The South Lowland Mining area had most of the disturbance in the same areas that were previously disturbed. The other mining area further up the stream was not affected. In the next year most of the mining in the South Lowland area will occur within the existing affected land area. It is possible the more southerly area. would be operated if product demand is high enough. In the Upland Mining area the disturbance continued to expand to the south when compared to previous reports. Most of the early disturbances in this area were placed in revegetation in 1998, as discussed in the ]999 annual report. Some peripheral areas on the crest of the hill have been recently topsoiled and will be planted in the near future. Future mining in the Upland Mining area will probably continue in the existing disturbances. A new area of about 10 acres was opened in the last year and is located further south on the ridge forming the Upland Mining Area. This area was opened because of particular product needs that could not be adequately supplied from existing open areas. Only about half of this area is involved in actual extraction. The rest contains some small stockpiles of product, stockpiled overburden, and stockpiled soils. Revegetation: No additional seeding was done in the last year. The existing seeded area (about 19.4 acres) continues to show excellent progress. Acreage Adjustments: Acreages reported this year are more precise than they were last year due to the implementation of a regular aerial photography program utilizing AirPhoto services out of Pueblo. This service provides excellent vertical as well as oblique photography, although the images are not stereoscopic. When scanned into a computer and the disturbances traced and then transferred to the topographic map, the errors are far smaller than can be done by estimation on the ground. This method is far less expensive than stereo aerial photography or surveying and provides a convenient continuous record of the site. Centennial Materials 2000 Annual Report M-1988-044 Coal Creek Resources Page 1 of 1