A three-day exercise testing the U.S. Coast Guard's ability to contain oil spills on large freshwater waterways is scheduled to wrap up today near St. Ignace.
The weather has been ideal, with a wintry blast creating the icy, unpleasant conditions Coast Guard officials wanted.
"It's very necessary to make sure that we're ready to respond in case something does happen," George Degener, a Coast Guard spokesman said.
Enbridge Energy is among the organizations taking part in the oil spill exercise. An Enbridge pipeline broke near Marshall in 2010. It dumped more than 800,000 gallons of crude oil in the Kalamazoo River.