USGS hydrologic study to use non-toxic green dye in Lake Fork Creek

LEADVILLE, Colo.--The U.S. Geological Survey will be conducting a dye-tracing study in Lake Fork Creek, west of Leadville, Colorado, and just downstream from the Sugarloaf Dam between August 14 - 18, 2023.  During this time, a non-toxic dye, fluorescein, will be first introduced into the Creek between 3 and 7 p.m. and will be monitored through the night as it flows downstream.