Elmer P. & Irene Jasper Woods Memorial, commonly referred to as Jasper Woods, is a 49-acre (20 ha) nature sanctuary located in St. Clair County, Michigan in the United States.

She wanted to see it preserved for wildlife and was persuaded to sell it in a bargain sale.

Jasper Woods is a northern-type woods primarily made up of hemlock, white pine, maples, oaks, white and yellow birches, and wild black cherry.

[3] Jasper Woods is home to three kinds of trillium, which bloom at slightly different times.

Earliest is the red trillium, which blooms in early May, depending on spring weather conditions.