Fossil Butte National Monument

Thirty-two-million years after a saber-tooth cat stalked prey on the landscape known today as Badlands National Park, a 7-year-old girl working for her latest Junior Ranger badge spotted the animal's fossilized skull protruding from a hillside.

Ok Travelers, it’s time to test your knowledge of the wondrous plants, animals, history and even oddities found within units of the National Park System. How much do you really know about the parks? Maybe more than you realize!

Of course, the big birthday in the National Park System being notched this year is at Yellowstone National Park, which turns 150th. But there are 11 units of the system that turn 50 this year.

Kids of all ages love dinosaurs. As a six-year-old, I remember playing with plastic dinosaurs with names like Brontosaurus, Triceratops, and Tyrannosaurus Rex and imagining about 100 million years ago when those big reptiles walked the earth. It kept me occupied for hours. A recent visit to Fossil Butte National Monument in Wyoming and Dinosaur National Monument in Utah rekindled my childhood dinosaur interest.