The Whirling Disease Incidence Maps show where the whirling disease parasite has been detected, or has been sought but not detected. Summer 2009 additions & updates: California, Nevada, Oregon, Washington DOWNLOAD DISTRIBUTION MAPS Myxobolus cerebralis Data Level Web View Print View Distribution by Watershed Arizona Arizona [188 KB pdf] California California [1.5 MB pdf] Colorado Colorado [5.6 MB pdf] Idaho Idaho [1.6 MB pdf] Maryland Maryland [1.0 MB pdf] Montana Montana [2.0 MB pdf] Nevada Nevada [1.5 MB pdf] New Mexico New Mexico [168 KB pdf] New York [disclaimer] New York [436 KB pdf] [disclaimer] Oregon Oregon [2.0 MB pdf] Utah Utah [1.7 MB pdf] Washington Washington [3.0 MB pdf] Wyoming Wyoming [5.2 MB pdf] Regional Regional [2.75 MB pdf] Nationwide Nationwide [3.3 MB pdf] Distribution - Points Data Arizona Arizona [208 KB pdf] California California [2.4 MB pdf] Colorado Colorado [6.9 MB pdf] Idaho Idaho [2.27 MB pdf] Maryland Maryland [1.0 MB pdf] Montana Montana [3.10 MB pdf] Nevada Nevada [2.3 MB pdf] New Mexico New Mexico [196 KB pdf] New York [disclaimer] New York [456 KB pdf] [disclaimer] Oregon Oregon [3.1 MB pdf] Utah Utah [3.08 MB pdf] Washington Washington [4.1 MB pdf] Wyoming Wyoming [9.08 MB pdf] Regional Regional [3.72 MB pdf]

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Please note: These distribution maps are intended for general informational purposes. The data were obtained from a variety of sources that used different techniques to detect the parasite. The watershed-level portrayals of the presence of whirling disease (HUC level 8) should not be interpreted to mean that the parasite is present in every sub-watershed. The Whirling Disease Initiative assumes no liability for the information provided.

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