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Aspen Highlan.ds Ski Arlta . Draft ElIvironmenlal Impact Stalltmenl Table 2,6 COnlin..d Discipline Impacts Potential Mitigalion A1terna1ive A A1terna1ive B A1temalive C WETLANDS channel which is a dry watercourse intermittent streams (with a total of (Continued) except during precipilalion or run-off four crossings 10 feet long and 22 events (two crossings 10 feet long and feet wide) and the same channel as 22feet wide), T ogethcr these crossings affec.ed in A1teroalive B (four would necessitate about 0.02 acres of crossings 10 feetloog and 22.feel dredge and fill. wide). Tog~ther these disturbances would require 0,04 acre.< of dredge and fill, WD.DLIFE fmpacts to wildlife habitats under The following summarizes estima1c:d Impacts to MIS under Altema1ive C To reduce loss of snags and forest debris habitat Managcmenl Indicator this a1Lcmative would include those habitat loss (% luss of total existing would be similar lo those occurring elements, phase glading, retain snags that occur Species (MIS) associated with existing and already habitat in parentheses) and the potential under Alternative B, the main among live trees, and recruit snags in ungladed arcBS. approved activities/facilities. Such effects of these losses on MIS: differences being due to To reduee habitat fragmentation. reduce the amount impacts w~uld be minor since construction of the Loge Peak of clcarcuuing for liftlines/access roads. and approved developments would Pika 0 - acres (12t acres would be skied restaunm~ and Ridge and Highland consolidate blocks of habila1s where possible, occur in areas already affected by over), impacts negligible if no grooming Surface lifts, Jess snowmaking, and anificial openings and buman occurs. summer activities at Loge Peak. Minimize disruption of alpine habitats by prohibiting activities. Southern red.backed vole - 84 acres fullowing are differences in habitat skiing and trail grooming during shallow snow (4%), rapid reproductive rate would losses and impacts that may occur pcnods (<8 inches or as detennined during likely minimize impacts from habitat between the two alternatives: monitoring). airlift towers and malerials to loss. construction siteS, confine summer traffic to well. Snowshoe hare - 0 acres, Iree Pika - 0 acres of habitat would be defined roads and fOOl paths, regeneration after gJading may increase lost and 56 acres less than under habitat. Alt.emative B would be skied over, Displacement of forest-interior and edge-sensilive While tailed ptarmigan - I acre (l %) but additional disturbance could species from critical habitat areas would be minimized alpine and talus/scree. some impact lo result from increased summer by limiting construction to after July 15. and phasing wintering ptarmigan may occur, but activities near Loge Peak restaurant construction of different lift pods over multiple years. provided ptarmigan are not nesting in White-tailed ptarmigan. one exlIa proposed development areas, off-season acre of habitat could be impacted by Visitor disturbance of wildlife in the off-season would impacts would have little impacL surface lifts. resulting in poSSlble be minimized by restricting summer visitation lo after Blue grouse. uncertain habitalloss, loss of JmxxI if impac1.s occur July 15, limiting summer recreation activities to positive and negative impac1.s due to during lJIe nesting season, and existing roads! paths. and by prohibiting dogs or glading could balance Oul additional impacts could occur due enforcing existing leasb laws, Yellow warbler - 2t acres (24%). may to increased summertime recreation resuh in long-tam decline in numbc:<s in at Loge Peak. the affected area. Mountain chickadee - 383 acres (20%). individuals may be displaced but overall impact is likcly to be minor due to adaptabilily and edge tolaance. 2-22 Comparison of Altunalivlts