Welcome Liz! Thanks very much for contributing to the Plant Database.
One of my favorite ATP features is the "Memeber Map". I don't know any way to navigate to it unless you saved the link when dave mentioned it. I keep that link in my signature block!
http://garden.org/users/member...
On the map, I see 14 Coloradans, mostly around Denver. "Kathy" and "Bennysplace" flank you on Rt. 86, maybe 10 or 15 miles east and west of you.