Scientific Name: JUNIPERUS SCOPULORUM-ARTEMISIA TRIDENTATA 

 Common Name: ROCKY MOUNTAIN JUNIPER-BIG SAGEBRUSH 



Global rank: G2? 

 State rank: 52? 



Forest Service status: 

 Federal Status: 



Element occurrence code: C2A2ABABM0 . 001 



Survey site name: BLOCK MOUNTAIN SUMMIT 



EO rank: AB 

 EO rank comments: PRISTINE SITE. 



County: MADISON 



USGS quadrangle: BLOCK MOUNTAIN 



Township: 004S Range: 008W Section: 23 

 Township-range comments: E2SE4 



Precision; 



Survey date: 



First observation: 



Last observation: 



1991-06-03 



1991 



1991-06-03 



Elevation: 5995 

 Slope/aspect: 9% / SOUTHEAST 

 Size (acres) : 1 



Location: 



FROM GLEN, PROCEED SOUTH ON PAVEMENT CA . 0.7 5 MILE TO THE BURMA ROAD. 

 TAKE THIS ROAD 7.5 MILES TO SANDY HOLLOW. BLOCK MOUNTAIN IS 1.5 MILES 

 NORTHEAST. PLOT IS LOCATED ON THE GENTLY SLOPING, NARROW SUMMIT RIDGE 

 0.05 MILE SOUTH OF THE HIGHEST SUMMIT OF BLOCK MOUNTAIN. 



Element occurrence data: 



WITHIN PLOT, 13 SPECIES OBSERVED. DOMINANTS INCLUDE: JUNIPERUS 

 SCOPULORUM (10% CANOPY COVER), ARTEMISIA TRIDENTATA (20%), AGROPYRON 

 SPICATUM (30%), BOUTELOUA GRACILIS (10%), AND STIPA COMATA (20%). 

 COMPLETE LIST ON FILE AT MONTANA NATURAL HERITAGE PROGRAM. 



General site description: 



STRUCTURALLY CONTROLLED MOUNTAIN SLOPE; PLOT POSITION IS NARROW RIDGE 

 BASALT PARENT MATERIAL AND LITHIC USTORTHENT SOIL SUBGROUP. GROUND 

 COVER: BARE SOIL (10%), TOTAL COARSE FRAGMENTS (60%). 



Land owner/manager: 



PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 

 BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments : 



MTNHP PLOT #91RD004. 

 AND A. McALPINE. CA. 

 SITE ARE DEAD. 



SURVEY CONDUCTED BY R. L. DEVELICE, P. ACHUFF, 

 30% OF THE JUNIPERUS SCOPULORUM TREES PRESENT ON 



Information source: 



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

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



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