on a clear day, I can see Mt. Mckinley from my house(!!!)
you know, you could actually get a job there this summer, I know that they're hiring people right now, look into it!!!
...and actually, I don't think he did use a filter, I've seen the sky look like that before, he prolly took that either really early in the morning, or really late at night, in the summer, because the sun never really sets here for about two months, there's just twilight! It's so lovely!