I thought Avery was a white dog until I saw White Sands National Monument. The Sand is perhaps whiter than any white I've ever seen before. It's made from gypsum which has been ground into a talcum powder soft white sand that has created huge dunes throughout the area. They allow you to walk on the dunes because they will obviously be restored with wind very quickly. Avery thought it was snow and kept trying to eat it. She loves the snow and went whacko when she got out of the car to play on the mounds.