Chemical history- No other chemical data for Blackfoot Meadows are 

 known. Little spatial variability should be expected; somewhat 

 higher mineralization would probably be seen at other times of year 

 when base flow conditions in the Little Blackfoot River are 

 approached. 



Sediments. Extractable concentrations of most trace elements were 

 below detection limits. The arsenic concentration was in the upper 

 half among sites of this type; zinc, copper, manganese and iron 

 were toward the lower end of their respective ranges. None 

 significantly exceeded regional western U.S. means for soils. 



