Lewistown, Montana 

 Location 



Fergus Co., MT; Sec. 21, R. 18 E., T. 16 N.; GPS-UTM 5221028 N, 617215 E. 

 About 5 miles north-northwest of Lewistown. 



From Lewistown, travel north on U.S. Highway 191 about 4.5 miles. Turn left (west) onto graveled 

 road (Danvers/ Denton Cutoff Road). Continue west, then north, for about 0.7 mile. Photopoint is 

 west of road before crossing a drainage. 



Description 



August 10, 1999 



Upland Near Photopoint 



Grasses. Agropyron smithii, 

 Koeleria pyramidata, 

 Bouteloua gracilis, Poa 

 pratensis, Stipa comata, 

 Stipa columbiana 



Forbs. Achillea millefolium, 

 Liatris punctata, Psoralea 

 tenuiflora, Phlox hoodii, 

 Melilotus officinalis 



Shrubs. Artemisia frigida, 

 Gutierrezia sarothrae 



Bottomland Near Right 

 Center of Photo 



Grasses. Phleum pratense, 

 Poa pratensis 



Forbs. Rumex spp., Melilotus 

 officinalis 



Synopsis 



Left center of photo shows a 

 gradual increase in the culti- 

 vated area since 1917. Upland 

 vegetation to cultivated area was 

 invaded by Melilotus officinalis 

 sometime after 1960. A small 

 reservoir located in the depres- 

 sion between the uplands in the 

 foreground and background is 

 altering area drainage patterns 

 while supporting large amounts 

 of Rumex spp. Cover and density 

 of Pinus ponderosa have contin- 

 ued to increase on South 

 Mocassin Mountains. 



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