| 1828 | Julia Dexter Stannard was chased on her horse going from Ann Arbor to Dexter |
| 1835-1870 | Several sightings around Manchester as reported by U of M zoologist Norman Wood |
| 01/28/03 | State Street just after Michigan Avenue where State banks North just after the Old State Road intersection |
| 05/28/03 | On East Main Street in Manchester down near Hibbard Street |
| 09/28/04 | Ypsilanti 1 1/2 mile S of I-94 exit #181 |
| 10/04 | Observed by Diane O. and Ryan M. of Ann Arbor |
| 04/06/05 | Ann Arbor, I-94, 2 miles E of Jackson Road Exit |
| 06/05 | Observed by Laurie M. of Manchester |
| 06/16/05 | Helber Road, just S of Pleasant Lake |
| 06/16/05 | Manchester |
| 11/04/05 | Lake Winnewana near State land |
| 01/06 | Waterloo Recreational Area, 10 miles NW of Ann Arbor, Chelsea, Tracks only |
| 03/06 | Observed by Stephanie T. of Ann Arbor |
| 04/06 | Observed by James E. of Petersburg |
| 04/03/06 | Milan Oakville Road, 3 miles E of Milan and 3 miles W of Rasonville Road |
| 06/02/06 | 1 mile from Wayne County line |
| 07/06/06 | Subdivision yard, Observed and screamed |
| 08/13/06 | 2 miles W of Saline on US 12 near Harry's Furniture |
| 02/21/08 | Edge of Parking Lot adjoining woods behind Washington Condominiums, Manchester. Observed fresh tracks in snow from building to woods. Startled by crackling noise and observed cougar jump down from a tree. Cat was about 5' long. Observed at 30'. Family has seen brown and black cougar in the woods in the area before. |
| 02/22/08 | Along W/B I-94 near Baker Road. |
| 03/11/08 | I-94 West of M-52 between east bound lane and Chrysler proving grounds fence. |
| 03/11/08 | I-94 heading toward Ann Arbor. Long tail, short ears, and tan. Long and fast stride crossing westbound traffic. |
| 03/12/08 | 9:45 p.m. Ann Arbor Road, 1/2 mile east of Gotfredson Road, Plymouth Township. Crossed in front of vehicle |
| 05/04/08 | Ann Arbor near fork of US23 and M14 west that continues over the Huron river. Looked like a lion without a mane watching the deer |
| 05/21/08 | Driving toward Ann Arbor from Whitmore Lake, Southbound 23. Cougar observed in a field |
