to
Update
is a city in Delta County in the U.S. state of Michigan. First settled in 1877, Gladstone's original name was Saunders Point. The population was 5,032 at the 2000 census.
U.S. Routes 2 and 41 run concurrently through the city, connecting with Escanaba, nine miles to the south. US 41 runs north to Marquette and US 2 runs east to Manistique. M-35 runs northwest 52 miles to Gwinn and merges with US 2/US 41 south to Escanaba.
The city is on a small projection into the Little Bay de Noc, which opens onto the Bay of Green Bay on Lake Michigan.
According to the United States Census Bureau, the city has a total area of 7.9 square miles (20.4 km²), of which, 5.0 square miles (12.8 km²) of it is land and 2.9 square miles (7.6 km²) of it (37.14%) is water.