Scientific Name: ARTEMISIA TRIDENTATA/AGROPYRON SPICATUM PA 

 Common Name: BIG SAGEBUSH/BLUEBUNCH WHEATGRASS ASSOCIATION 



Global rank: G5 

 State rank: S5 



Forest Service status: 

 Federal Status: 



Element occurrence code: C3A2BCACA0 . 023 



Survey site name: MOOSE CREEK/CHICKEN CREEK CONFLUENCE 



EO rank: BC 

 EO rank comments: SITE HAS APPARENTLY BEEN DEGRADED BY 



CATTLE USE. 



County: SILVER BOW 



USGS quadrangle: MELROSE 



Township: OOIS Range: 009W Section: 23 

 Township-range comments: SW4SE4 



Precision; 



Survey date; 



First observation; 



Last observation; 



1991-06-12 



1991 



1991-06-12 



Elevation: 5940 

 Slope/aspect: 40% 

 Size (acres) : 40 



/ SOUTHEAST 



Location: 



TAKE MOOSE CREEK EXIT (^99) OFF INTERSTATE 15. PROCEED EAST ON MOOSE 

 CREEK ROAD 2.5 MILES AND PARK. PLOT IS UPSLOPE CA. 0.15 MILE DUE WEST. 



Element occurrence data: 



WITHIN PLOT, 2 SPECIES OBSERVED. DOMINANTS INCLUDE: ARTEMISIA 

 TRIDENTATA (50% CANOPY COVER), ARTEMISIA FRIGIDA (3%), OPUNTIA 

 POLYACANTHA (1%), AGROPYRON SPICATUM (50%), AND STIPA COMATA (20%). 

 COMPLETE LIST ON FILE AT MONTANA NATURAL HERITAGE PROGRAM. 



General site description: 



RESIDUAL MOUNTAIN SLOPE; PLOT POSITION IS MID-SLOPE. SCHIST PARENT 

 MATERIAL AND ARIDIC ARGIBOROLL SOIL SUBGROUP. GROUND COVER: BARE SOIL 

 (20%) , TOTAL COARSE FRAGMENTS (50%) . 



Land owner/manager: 



BLM: BUTTE DISTRICT, HEADWATERS RESOURCE AREA 

 HUMBUG SPIRES PRIMITIVE AREA 



Comments : 



MTNHP PLOT #91RD018, 

 AND K. HASSIEN. 



SURVEY CONDUCTED BY R. L. DEVELICE, J. SANFORD, 



Information source: 



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

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



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