• A quiet summer walk through the Marching Bear Group of effigy mounds

    Effigy Mounds

    National Monument Iowa

Freshwater Plants

Nature and Science

Aquatics on Buffalo Pond

The Mississippi River, with its many islands, sloughs and backwaters, is rich in nutrients that sustain aquatic plants which make up the bottom of the food web for living organisms in the river ecosystem. Various species of pondweed along with water milfoil, elodea, watershield, duckweed, arrowhead, bulrush, cattail, and wild rice populate backwaters and ponds. These aquatic plants serve as an important food source and provide habitat. They produce oxygen and organic material to benefit other organisms. Their leaves and stems provide spawning habitat, food, and cover for a variety of fish and aquatic invertebrates.

Did You Know?

2000 Year Old Burial Mounds at Fire Point

Effigy Mounds National Monument preserves 31 early American Indian earthen mounds in the shape of animals. The monument preserves over 200 mounds representing almost 2000 years of mound building along the Upper Mississippi River.