If you have an opportunity while at Red Rock, you can continue on to Willow Spring to view an agave roasting pit.
The roasting pit is .4 miles from the Lost Creek parking lot by trail. If you choose to drive to Willow Spring Picnic area, the roasting pit is about 50 yards from the restroom.
Each piece of limestone you see was only used a few times to provide heat for cooking. After a roast, the Native Americans would throw the rocks over their shoulders to get the cooked food below. In addition to agave, the Native Americans roasted many types of plants and meats in roasting pits.