Scientific Name: JUNIPERUS SCOPULORUM/CERCOCARPUS LEDIFOLIUS PA 



Common Name: ROCKY MOUNTAIN JUNIPER/ CURL-LEAF MOUNTAIN MAHOGANY ASSOCIATION 



Global rank: G3 Forest Service status: 

 State rank: S3 Federal Status: 



Element occurrence code: C2A2ABABN0 . 002 



Survey site name: HOGBACK CENTRAL RIDGE 

 EO rank: AB 



EO rank comments: PRESENCE OF INCREASER SPECIES IS LIKELY 



DUE TO A COMBINATION OF HEAVY USE BY 

 DEER AND NATURALLY UNSTABLE SUBSTRATES. 



County: BEAVERHEAD 



USGS quadrangle: BLOCK MOUNTAIN 



Township: 005S Range: 008W Section: 15 Precision: S 



Township-range comments: NW4NW4 



Survey date: 1991-06-07 Elevation: 5460 

 First observation: 1991 Slope/aspect: 82% / SOUTHEAST 



Last observation: 1991-06-07 Size (acres) : 40 



Location: 



FROM GLEN, PROCEED SOUTH ON PAVEMENT 7.4 MILES TO GRAVEL CROSSROAD. 

 TAKE THIS GRAVEL ROAD 0.6 MILE EAST TO AN INTERSECTION WITH A SIDE 

 ROAD. TAKE THIS SIDE ROAD 2.3 MILES NORTH AND PARK. PLOT IS JUST OVER 

 CREST OF HOGBACK, CA. 1.4 MILES DUE EAST. 



Element occurrence data: 



WITHIN PLOT, 2 2 SPECIES OBSERVED. DOMINANTS INCLUDE: JUNIPERUS 

 SCOPULORUM (1% CANOPY COVER), ARTEMISIA FRIGIDA (10%), CERCOCARPUS 

 LEDIFOLIUS (30%) , AGROPYRON SPICATUM (3%) , AND BOUTELOUA GRACILIS 

 (10%) . COMPLETE LIST ON FILE AT MONTANA NATURAL HERITAGE PROGRAM. 



General site description: 



RESIDUAL MOUNTAIN SLOPE; PLOT POSITION IS UPPER SLOPE. QUARTZITE 

 PARENT MATERIAL AND LITHIC USTIC TORRIORTHENT SOIL SUBGROUP. GROUND 

 COVER: BARE SOIL (3%), TOTAL COARSE FRAGMENTS (90%). 



Land owner/manager: 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments : 



MTNHP PLOT #91RD013. SURVEY CONDUCTED BY R. L. DEVELICE AND A. 

 McALPINE. CA. 10% OF THE CERCOCARPUS LEDIFOLIUS PLANTS PRESENT ARE 

 DEAD. 



Information source: 



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

 PROGRAM, 1515 EAST 6TH AVE., HELENA, MT 59620. 



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