I am very close to Augusta. It's been years since I've been there. I know, I should be ashamed living so close and all. I haven't been up in the Arch in a while either!
I am from Weldon Spring, Missouri. (Originally a Southern Illinois girl.) My first visit to your area was approximately six years ago. White sand must be magnetic; I've been drawn back there just about every year since. (Twice this year!)