33 CFR 165.905 – USX Superfund Site Safety Zones: St. Louis River
(a) The following areas of the St. Louis River, within the designated boxes of latitude and longitude, are safety zones:
(1) Safety Zone #1 (North Spirit Lake):
(2) Safety Zone #2 (South Spirit Lake):
(b) Transit of vessels through the waters covered by these zones is prohibited. Swimming (including water skiing or other recreational use of the water which involves a substantial risk of immersion in the water) or taking of fish (including all forms of aquatic animals) from the waters covered by these safety zones is prohibited at all times.