Gladstone is a city in Delta County in the Upper Peninsula of the U.S. state of Michigan. First settled in 1877, Gladstone's original name was Minnewasca. The population was 5,257 according to the 2020 census. U.S. Highways 2 and 41 run concurrently through the city, connecting it to various other communities in the Upper Peninsula. The city of Escanaba lies roughly 14km (9mi) to the south.

Delta County is a county in the Upper Peninsula in the U.S. state of Michigan. As of the 2020 census, the population was 36,903. The county seat is Escanaba. The county was surveyed in 1843 and organized in 1861. Its name originates from the Greek letter delta (Δ), which refers to the triangular shape of the original county which included segments of Menominee, Dickinson, Iron, and Marquette counties. Recreation and forest products are major industries, and crops include hay, corn, small grains, potatoes, and strawberries.