It's an Orange Sulphur or a Colia eurytheme. The identifier is the orange "blush or rouge" on the forewing. The Clouded does not have this.

Thanks a bunch. I was organizing my butterfly photos and came across this one. I had labeled it as an Orange Sulphur, but it would be the only one that I would have ever seen in my yard, which made me second guess my original ID. Always best to be sure. :o)
Angie