The Border-to-Border (B2B) Trail is a partially constructed non-motorized trail in Washtenaw County, Michigan. The trail is planned to cover approximately 35 miles (56 km) from Livingston County to Wayne County along the Huron River.

Ann Arbor Charter Township is a charter township of Washtenaw County in the U.S. state of Michigan. The population was 4,673 at the 2020 census. The township borders the city of Ann Arbor and contains numerous exclaves, but the two are administered autonomously.