http://www.portrait-artist.org/ has a bunch of stuff. At least, I assume it does. I bookmarked it years ago, when I was planning on learning to draw better, and just sort of never got around to it...
Still, I assume I didn't bookmark it for no reason. Check it out.
In the winter months, snowstorms and rainfall in the Patagonian Ice Fields can drastically affect the landscape. Worsened by heavy winds, such storms can reduce visibility and lead to glacial calving, ice collapses, and avalanches. During these conditions, travel is not advised. — The Documentarian