Hi. Boy, do you have the name I should have! I am a roadrunner forever, but slowing down some now. I have a place in TX that I like to go to in the winter, but can't go yet, as my son is getting married in March. Where are you? Our place is in Caldwell.
As for the pattern, here is a good website. It does not have the yardage and neither do I. I went to my stash, and bought a few pieces to go with it, so I have no idea how much of what I used. I would have to tell you that it took a whole trailer full of fabric and then I had to go buy more. That is a quilter's tale, for sure. They're worse than fishermen.
I'm going to post a picture soon, hopefully.
http://www.thequiltercommunity.com/Wc497b369e943a.htm
Snail's Trail is not the best starter quilt because of the triangle edges stretching a little, so it is hard to keep the size of the block true. If you are an experienced seamstress, it won't be as hard. Good luck with your quilting. It gets in your blood.