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groups of 0.2-0.9 and 3-18,. This ceapares to previous Stevens ~1c}t ratios which <br />• mainly ranged from 0.9-6.8 (two extreme ~alucs Frere O.OJOS and 11;.8), azd values <br /> of apprm:imately j-22 from .:ay and June, 197d samples in the uppor Ste•r~ns Gulch <br />(Station -la). Lir..ited pre~2ous data from the 1io: Vh Fork showed values from 7-18. <br />Sienificar,ce <br />t;o clear and consistent relationship between iron and iSS tras found during the <br />present survey period, and there was no ccnclwive evidence that the Fe~TSS ratio <br />changed significant7~~ t,7thin the study area. It is apparent that there were some <br />major shifts in ratios corresponding to the higher .-•,:noffs, when TSS values here <br />relatively hiEh, and periods when TSS values mere lox. Iron from sedirents, as <br />reflected by total iron analysis of the sarp'_e, s'ri_''ts during these periods a-id <br />probably reflects different sources of TSS for the two periods. <br />,. <br />u <br />3- ~ <br />