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<br />' are located in pasture and cropland. The proposed exploration <br />activities should not significantly impact any of the various <br />vegetation types found throughout the area. <br />The soils within the area are formed primarily from weathered <br />' fine grained sandstone, siltstone, and shale. The dominant soils <br />are moderately deep to deep, well drained and have loam to fine <br />sandy loam surface textures.l <br />Geologic Setting <br />Coal-bearing strata of the project area are found in the Iles and <br />Williams Fork Formations of the Mesaverde Group. The coals of <br />primary interest are designated as the Middle Coal Group and <br />include the Lennox, Wadge, Sage Creek, and Wolf Creek Seams. The <br />stratigraphic sequences are illustrated and presented as Figure <br />1, General stratigraphic Column. <br />' The Middle Coal Group is stratigraphically positioned between two <br />regressive sandstone deposits. These sandstones are expressed at <br />the surface as prominent cliff-forming units throughout the <br />t Williams Fork Mountains. These bounding units are the Twentymile <br />Sandstone member and the Trout Creek Sandstone member, and are <br />the significant groundwater aquifers of the area. <br />' 6. Narrative Description - Exploration Methods <br />1 <br />t <br /> <br /> <br />1 <br />1 <br />It is planned to drill seven exploration holes under the approved <br />exploration. The drill holes are designated as Sites "A" through <br />"G". Depending upon additional data requirements, any of the <br />holes (at its respective location) may be twinned for the purpose <br />of further geologic of hydrologic testing. Each of the holes are <br />shown on Map 1, 1996 - 1997 Exploration Drilling. As provided <br />above, the notice of intent area is located in sections 1, 2, 10, <br />and 12, of Township 5 North, Range 89 West. <br />Drilling Operations <br />Drilling will be conducted by one, possibly two rotary drill rigs <br />capable of rotary drilling and spot coring the coal interval of <br />interest. The primary circulation medium will be water with <br />drilling mud. In the event that ground conditions allow, air or <br />an air/foam medium may be utilized. Water for drilling will <br />likely be obtained from local stockponds. Drilling operations <br />are planned to commence during late spring, as ground conditions <br />allow (Mid-May to early June), and should be completed by the end <br />of October. It is currently planned that drilling will be <br />1982. <br />1Williams Fork Tract Profile, Bureau of Land Management, <br />