These lakes are moderately sensitive to acid deposition; acidification would require precipitation at least as acidic as that presently found in the more heavily impacted areas of eastern North America. Because most snowpack contaminants are released early in the melting process, seasonal acidification pulses would probably occur at much lower levels of acidic inputs.
Reuss, John O.; Vertucci, Frank A.; Musselman, Robert C.; Sommerfeld, Richard A. 1993. Biogeochemical fluxes in the Glacier Lakes catchments. Res. Pap. RM-RP-314. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 27 p.