Naylor says prairie dog holes are used by snakes, amphibians, burrowing owls and insect. The holes also cause vegetation changes, which provide grazing for bison.
Most magical moment in the park: In the summer of 1979, when Naylor spent her first year as a volunteer working in the visitor center conducting programs and sharing park history with guests.
"I did not intend to make it a career," she says. "But after spending the summer working at a national park, I had no other aspirations. And it was this park that did it for me."
Funniest moment at the park: Seeing a bison calf become confused about his mother's identity.
"I once watched a bison calf run across the prairie to mom -- fast as he could go," she says. "When he got about 15 feet, he stopped, turned 90 degrees and ran to another one. That was one of the most amazing things I have seen. It was both interesting and funny."
A ranger's request: The park is home to a variety of wildlife. Understand that the bison are the most dangerous animals in the park, even though they look docile and calm.
"They can run faster than a horse and turn on a dime," she says. "Generally, if an animal reacts to your presence, you are too close. They (bison) do charge humans."
Another park she'd like to visit: Lava Beds National Monument in Siskiyou, California. Located in the high desert of Northern California, it is known for Native American cave art and as one of North America's most continuously occupied geographic areas.
Naylor says her goal is to visit every national park and estimates she's been to more than half of them.
"I like large, wide-open landscapes, and it sounds like a fascinating place," she says. "I like to go anywhere I haven't been before."