It's one of Michigan's most iconic landmarks. And, on the Fourth of July, the Mackinac Bridge will have the American flag flying from the bridge's south tower.

The gesture is in observance of Independence Day.

The Mackinac Bridge Authority (MBA) bought the flag last year. The original plan was to display the national flag from the "Mighty Mac" during Labor Day Weekend. However, weather did not permit that to happen.

The MBA was able to fly the 30-foot by 60-foot flag flag for the first time, in May, during the Memorial Day holiday. Michiganders loved it.

A photo posted on the Michigan Department of Transportation Facebook page was shared enough to reach more than one million people on the social media site.

"The Authority is proud to honor the flag in this way, and we're so pleased so many people shared in the experience," said MBA Executive Secretary Bob Sweeney. "Weather at the Straits is unpredictable, but we look forward to future displays that can be enjoyed in person or through social media."

The MBA intends to display the flag for five holidays each year, when possible. They include: Memorial Day, Flag Day, the Fourth of July, Labor Day, and Veterans Day.

The flag is displayed in accordance with the U.S. Flag Code, which calls for the flag to be hung vertically over a street, with the union on the east.