Ecologically, the park is diverse as a result of a variety of topographic and hydrologic features. The rolling hills of park uplands are dominated by mixed-prairie communities of short and midgrasses, including sand dropseed, needle-and-thread, blue grams, western wheatgrass, little bluestem, and fortes such as blazing star, purple and white prairie clover, hairy golden aster, fringed sagewort, winterfat, yucca and prickly-pear cactus. The reservoir shoreline, South Platte River and Plum Creek floodplains support large wetland, riparian and aquatic communities. Ponds and wetland habitats have also been created at the southwestern edge of the park through a cooperative venture with the neighboring Lockheed-Martin facility.