Whirling disease remains a problem throughout much of the Intermountain West.  Despite the numerous studies on the biology of Myxobolus cerebralis, little is known about the incidental transfer of M. cerebralis among drainages by anglers.  We hypothesize that anglers can transfer M. cerebralis among drainages by transporting benthic sediments containing myxospores on wading equipment, boats, and boat trailers.  Our inductive reasoning is based on the data that myxospores are found in the sediment, myxospores are highly resilient to environmental stress, fishing equipment often captures benthic sediment, and anglers are highly mobile organisms.  Therefore, this research study will identify the likelihood of detecting myxospores relative to sediment amount, quantify the amount of angler movement among basins, quantify amount of sediment on angling equipment, determine if the sediment on angling equipment contains myxospores, and determine sediment load and presence of myxospores on various wader and boot types.  Understanding angler movements and the amount of sediment they transport could be critical information in managing the spread of whirling disease and other invasive species.  These data will be useful in developing management strategies to reduce the spread of whirling disease.