Inside the building, there is also a 15-foot-tall statue of Gertie, a giant ground sloth. Gertie was built to commemorate the skeletal remains found inside the cave. There was another dinosaur statue when the place was known as Dinosaur Caverns.

The statue shown in the third row above was probably built in the 1960s. I can't tell if it's made from concrete, some type of stone, or a mixture of both.

The 40-foot-long statue shown in the bottom two rows above was installed in 2013. In 2011, it was installed in San Juan Capistrano, CA at Zoomars Petting Zoo. The owner bought the statue in 2012 at an auction in Anaheim, CA for $12,000 and named it "Juan". The statue was originally painted a brownish green with a white underbelly. Supposedly, the statue was originally located at a shopping mall in Romania. The statue didn't conform to San Juan Capistrano regulations and the statue had to go. The owner had many offers before deciding on Grand Canyon Caverns where the statue has been reamed "Zoomie." It was repainted bright green after being installed at Grand Canyon Caverns. For more, see this website. [map]