Although first discovered and excavated more than 20 years ago, SI remains an active dig site to this day. We have currently counted almost 1,300 bones excavated from this single location in an area of roughly 1,350 square feet, which is roughly one bone per square foot. Along with details about the bones found, you will also be informed about our digging practices, the tools, and other techniques used at this site and others. You may even have the chance to see staff and guests actively excavating.
Dig site tours run seven times a day, weather permitting—at 9:00, 10:00 & 11:00 AM, and 1:00, 2:00, 3:00 and 4:00 PM —on a first-come, first-served basis. Please note that summer days in Wyoming can be very bright and hot—in the 90’s and sometimes (though not often) above 100 degrees F, so hats, sunscreen, comfortable shoes, and water bottles are encouraged. Tours are mostly in the shade and not strenuous—no hiking involved—but there are six steps to climb in and out of the quarry. Water coolers and a portable toilet facility are at the site.