Scientific Name: CERCOCARPUS LEDIFOLIUS/AGROPYRON SPICATUM PA 



Common Name: CURL-LEAF MOUNTAIN MAHOGANY/ BLUEBUNCH WHEATGRASS ASSOCIATION 



Global rank: G5 Forest Service status: 

 State rank: S4 Federal Status: 



Element occurrence code: C3B4AHABA0 . 003 



Survey site name: BIG SHEEP CREEK SLIDE - SUMMIT 



EO rank: AB 

 EO rank comments: MODERATE TO HEAVY DEER BROWSING, BUT 



SITE IS BASICALLY PRISTINE. 



County: BEAVERHEAD 



USGS quadrangle: CABOOSE CANYON 



Township: 015S Range: OlOW Section: 10 Precision: S 



Township-range comments: NE4NW4 



Survey date: 1991-07-10 Elevation: 7860 

 First observation: 1991 Slope/aspect: 45% / SOUTH 



Last observation: 1991-07-10 Size (acres) : 5 



Location: 



FROM DELL, PROCEED SOUTH ALONG INTERSTATE 15 FRONTAGE ROAD FOLLOWING 

 THE BIG SHEEP CREEK SIGNS. CONTINUE 1.7 MILES TO A T INTERSECTION AND 

 TAKE THE FORK LEADING SOUTHWEST. PROCEED 8 MILES TO A Y INTERSECTION 

 AND TAKE THE ROAD LEADING SOUTH. PROCEED 7.5 MILES AND PARK. PLOT IS 

 CA. 0.4 5 MILE NORTHWEST, 0.1 MILE SOUTHWEST OF SUMMIT. 



Element occurrence data: 



WITHIN PLOT, 19 SPECIES OBSERVED. DOMINANTS INCLUDE: CERCOCARPUS 

 LEDIFOLIUS (30% CANOPY COVER), ARTEMISIA ARBUSCULA (10%), 

 CHRYSOTHAMNUS VISCIDIFLORUS (3%), AGROPYRON SPICATUM (20%), AND CAREX 

 ROSSII (3%) . COMPLETE LIST ON FILE AT MONTANA NATURAL HERITAGE 

 PROGRAM. 



General site description: 



MASS WASTED SLOPE; PLOT POSITION IS UPPER SLOPE. LIMESTONE PARENT 

 MATERIAL AND TYPIC USTORTHENT SOIL SUBGROUP. GROUND COVER: BARE SOIL 

 (20%) , TOTAL COARSE FRAGMENTS (30%) . 



Land owner/manager: 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments : 



MTNHP PLOT #91RD031. SURVEY CONDUCTED BY R. L. DEVELICE. ARENARIA 

 KINGII PRESENT ON SITE. ADDITIONAL PLOTS OF THIS TYPE ESTABLISHED CA . 

 0.25 MILE SOUTHEAST OF SITE (#91RD028), AND CA. 0.12 MILE SOUTHWEST 

 (#91RD030) . 



Information source: 



DEVELICE, ROBERT L. [COMMUNITY ECOLOGIST] . MONTANA NATURAL HERITAGE 

 PROGRAM, 1515 EAST SIXTH AVE., HELENA, MT 59620. 



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