"Folks just can't buy like they would normally, so it will have a ripple effect. It will definitely have an impact on the economy," he said.
Wilbur Jess, who owns the Dutch Cafe, just across from the base's entrance, said about 15 percent of the eatery's customers are reservists who work at the base, but he's not worried the partial shutdown will hurt his business.
"I'm not really worried about it, and to tell you the truth I hadn't really thought about how it would affect us," Jess said.
The partial government shutdown shuttered the Indiana Dunes National Lakeshore and furloughed about 50 staffers, while about 30 staff who work in law enforcement and fire services will remain at work because they're work is essential, said park deputy superintendent Garry Traynham.
He said the budget impasse arrives at what would have been a busy week for the park staff.
"We're expecting temperatures in the 80s the next few days and the leaves are starting to turn a little bit so we typically have a fair number of visitors this time of year," he said.
The Hoosier National Forest on Tuesday began shuttering its campgrounds at the forest, which spans 200,000 acres from south of Lake Monroe to the Ohio River. About 45 staffers have been furloughed, but another 15 involved in firefighting and law enforcement will remain on duty.
Property spokeswoman Judi Perez said the shutdown comes at a time of year when the forest typically sees an increase in visitors eager to see its fall colors.