Spearfish, South Dakota 

 Location 



Lawrence Co., SD; Sec. 10, R. 2 E., T. 7 N.; GPS-UTM 4936725 N, 590582 E. 

 About 6.4 miles north of Spearfish. 



From Spearfish, travel north 6.4 miles on U.S. Highway 85. Turn right (east) onto a private lane. 

 The photopoint is from the small hill, to the left (north), immediately upon entering the private 

 property. 



Description 



September 21, 1999 



Photopoint 



Grasses. Agropyron 

 intermedium, Agropyron 

 smithii, Agropyron cristatum, 

 Poa secunda, Schizachyrium 

 scoparium, Bromus inermis 



Forbs. Melilotus officinalis, 

 Grindelia squarrosa, Aster 

 spp. 



Shrubs. Gutierrezia 

 sarothrae 



Creek Bottom and 

 Drainages 



Shrubs and Trees. Artemisia 

 Jrigida, Artemisia 

 dracunculoides, Artemisia 

 cana, Populus deltoides, 

 Eleagnus angustifolia, 

 Fraxinus pennsylvanica, 

 Shepherdia argentea 



Synopsis 



Many species are growing on 

 this site, most of which are 

 invaders or serai species. Fore- 

 ground is a seeded remnant 

 gravel site. The vegetation near 

 the photopoint has been mowed 

 recently. Dominant species are 

 Agropyron intermedium, Agropy- 

 ron smithii, Agropyron cristatum, 

 Grindelia squarrosa, Melilotus 

 officinalis, Aster spp., Poa se- 

 cunda, Schizachyrium scoparium. 

 Artemisia Jrigida, Artemisia cana, 

 and Artemisia dracunculoides. 

 Background is now dominated 

 by cropland and farm building. 

 The most notable vegetation 

 change on the drainages is the 

 increase in size and abundance 

 of Populus deltoides, Eleagnus 

 angustifolia, Prunus virginiana, 

 and Fraxinus pennsylvanica. 

 Pinus ponderosa density has 

 increased on the hill in the 

 upper left of the 1998 photo. 

 Cropland is planted to Medicago 

 sativa. 



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