Minnesota Valley Wetland Management District lies within a transition zone between tallgrass prairie and forest habitats. Within this transition zone, the unique oak savanna community thrives in the open, dry environment. Oak savanna is characterized by sparse oak trees, often found on dry, south-facing slopes or areas with sandy soils, surrounded by healthy tallgrass prairie. Through intensive management, district biologists strive to restore, enhance, and maintain oak savanna habitat. We use prescribed fire, mowing, and herbicides to minimize the overgrowth of woodland species and encourage tallgrass prairie biodiversity in the understory.