According to this article in the New York Times, there are only two places in North America designed for year-round riding (or close to it): Mount Hood and Whistler. The article takes a look at the summer snowboarding life on Mount Hood, and how the summer attitude differs from winter.
I dont see the link to the article that you referenced above. Thanks for your blog, I enjoy reading.
Oh man am I a moron. I will update this and fix it. Thanks for pointing that out and for the compliment.
–adam