The east fork of Carrizo Creek flows through this small canyon graced by juniper and cottonwood trees. American Indian petroglyphs can be found along the canyon walls. A variety of wildlife, especially birds, can be seen in the early morning or before sunset.
The Willow Creek Trail provides a unique opportunity for visitors to observe migratory birdlife, native plants, mammals, birds, amphibians, reptiles, and fish in a variety of ecosystems, including short grass prairie and riparian habitats.
John Martin Reservoir, the largest body of water in southeastern Colorado, sits like a sapphire on the plains. This state park is not only a Santa Fe National Historic Trail Site but many also consider it to be a birdwatcher's paradise with almost 400 species documented.