Lawns used eighty percent of the water in this park, encouraged non-native plants to grow, needed toxic products to stay green, and lured deer across the highway. Replacing lawns with native species saved water and protected the park’s plants and animals. In 1980, park researchers tagged a two-year-old doe with yellow streamers on both ears. Over the next nine years, Double Yellow was sighted more than one hundred times and gave birth to at least a dozen fawns. In 1989, she was killed by a car while crossing the highway here, probably headed for the grass of the visitor center lawn.