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Vegetation Information <br />EXHIBIT J <br />Vegetation studies were completed within the proposed disturbed permit area in April 1997 by <br />Cedar Creek Associates, Inc... Seven vegetation types were delineated in the project azea: <br />Pinyon/Juniper, Shrub/Grassland, Stream Wash, Riparian, Grassland, Pinyon/Juniper Grassland <br />and Grassland/hnprovedPasture types. Data sheet copies completed in the field are included. <br />Survey Methodology <br />Survey work began with a review and analysis of the project area's topographic map to <br />determine general slope conditions and the potential for vegetation community variability based <br />on topography. In each azea proposed to be disturbed, one or more 100-foot transects <br />representative of the vegetation types to be impacted were established. The local Natural <br />Resources Conservation Service office was visited to obtain aerial photograph copies to <br />complete the vegetation map. <br />Results <br />With the exception of current mining extent, vegetation species in proposed permit area are <br />consistent with the original permit. The details discussed for each vegetation type varies with the <br />extent it will be disturbed by the mine plan. <br />Pinyon-Juniper Vegetation Type <br />This vegetation type occurs primarily in the foot hills to the north of Tallahassee Creek and on <br />the southern portion of the bench. Dominant species include one-seed juniper (Juniperus <br />monosperma), pinyon pine (Pinus edulis), mountain mahogany (Cercocarpus montanus) and <br />blue grama (Bouteloua gracilis). Transect numbers 1, 2, and 3 were run in the area proposed to <br />be disturbed by the granite quarry operation. Slopes ranged from 25 to 40 percent on south- <br />southwest aspects. Total plant cover ranged from 2.7 percent in areas with a high percentage of <br />rock outcrop to 14.8 percent in more vegetated azeas. Cover afforded by litter and rock ranged <br />from 0 to 87 percent under these same conditions. Bare ground was highly variable ranging from <br />10.3 to 85.2 percent. Average tree heights were estimated to range from 15 to 20 feet with shrub <br />heights ranging from 1 to 5 feet. The shrub component of this vegetation type was heavily <br />hedged. <br />Transect number 7 was run in this community at the proposed sandstone quarry site. Dominant <br />community species at transect number 7 pazalleled those noted above. Total plant cover was 6.9 <br />percent, cover by titter and rock approximately 74.1 percent, and bare ground equal to 19.0 <br />percent. Average tree heights were `10 to `15 feet and average shrub heights approximately 3.5 <br />feet. <br />The potential production of native understory vegetation in normal years is typically 300 pounds <br />per acre of air-dry vegetation for this unit within the county (SCS 1995). Given the amount of <br />rock outcrop present on the areas proposed to be disturbed on a site specific basis, the potential <br />production is believed to be a maximum of 100 pounds per acre for this site. <br />Frant Range Aggregates, LLC- Parkdale Quarry <br />OMG I12 Permit Amendment <br />Page 42 <br />