The chances of getting breast cancer increase with age, and the disease is much more likely after age 50 than before. So, from a public health and cost-effectiveness perspective, annual screening mammograms do the most good after age 50.
Mackinac Bridge. Mackinac Bridge. The Mackinac Bridge is located on Interstate 75 in northern Michigan at the Straits of Mackinac.The iconic bridge connects Michigan's upper and lower peninsulas. Mackinaw City is located at the south end of the bridge, while St. Ignace is located at the north end.
Each year, the Port Huron to Mackinac Boat Race is held, with a starting point in Port Huron north of the Blue Water Bridge. The race finishes at Mackinac Island, Michigan, crossing Lake Huron. It is considered by some boaters to be a companion to the longer Chicago Yacht Club Race to Mackinac.