By EXPRESS STAFF
Local authorities are urging visitors and residents to use caution around the Big Wood River and other streams over Memorial Day weekend.
In addition to high and swift moving water, authorities are concerned that the river may have been contaminated by flooded septic systems.
"I wouldn't suggest being in that water any longer than you have to," said Blaine County Disaster Services coordinator Chuck Turner.
The City of Ketchum advised visitors to enjoy river scenery from a safe distance because "riverbanks are very unstable."
Visitors are also advised not to let children or pets in the water, obey all official closure or caution signs and report downed trees or potentially hazardous material in the river.