Mio (/ˈmaɪoʊ/ MY-oh) is an unincorporated community and census-designated place (CDP) in Oscoda County in the U.S. state of Michigan.

[7] In 1973, a polybrominated biphenyl (PBB) contamination event caused farmers in the area to destroy their herds.

This event occurred when a dock worker accidentally shipped five hundred pounds of fire retardant Fire Master instead of the feed supplement Nutrimaster,[8] leading to the contamination of various farm animals, including cows, pigs, chickens, and sheep.

[8] For nearly eighteen years, Mio was thrust into the local and national media spotlight due to a case involving two Detroit-area hunters who went missing in the fall of 1985.

Progress in the investigation was stymied by area residents' refusal to help, citing fears of violent reprisal.

On November 21, 1985, childhood friends David Tyll and Brian Ognjan were beaten to death with baseball bats outside of a local bar.

The case was eventually cracked in 2003, when two brothers, Raymond and Donald Duvall, both from South Branch, in Iosco County, were convicted of murdering the pair near Mio.

"[10] A true account of the crimes was detailed in Darker Than Night, a 2006 book by Tom Henderson.

The fairly inexpensive land prices brought in more Amish settlers, and in the first five years, the community grew rapidly.

The settlers took advantage of the once wooded land by growing clover, hay, peas, corn, and potatoes, as well as other bumper crops.

[16] Mio, part of Northern Michigan, is situated in the Au Sable River Valley.

The school does not offer any Honors courses, but to make up for the lack of advanced classes, students are encouraged to dual-enroll through Kirtland Community College.

Wildlife are nearby, including bear, deer, eagles, Kirtland's warblers, and turkeys.

Local attractions and activities include: There are many recurring local events,[28] including: The following can be accessed in Mio, Michigan: There are no AM radio stations in range of Mio, Michigan, although WWJ can be heard faintly at night.