My usual tips for landscape are to push the aperture fully closed to F22, get a tripod, set the ISO to 100, and watch the exposure. Try multiple options for exposure and think about what you want/need the image to capture. I find cameras overexpose a bit as they try to do a best of the entire sort of thing and avoid blacks. Don't be afraid of black, but try both ends, you'll get different moods and both can be effective in the same composition. In some cases I went a little too far to the black side, but it's always a learning experience and I purposely did that a few times because I wanted some images to convert to black and white for my basement and office/study.
The settings here are automatic off a Canon SD1100IS. I forced the exposure with spot metering (often several tries to get what I think I wanted at the time). My usual Nikon D50 has been giving me fits with sensor dust. I've taken it in twice now, but it might be time to replace her. I'd never knock point and shoots, they are great tools and carrying a tiny camera instead of the multi-pound Nikon with superwide lens made hiking more enjoyable overall.
For those interested in more of Yoho National Park, there's some of Lake O'Hara in
this thread.
Thanks for all the comments everyone. Glad you enjoyed. Go visit some time, seriously. And if you make a big trip to the Canadian Rocky Mountains, don't forget to check out Yoho. In both Lake O'Hara and the Iceline Trail you'll see some of the best stuff in the Rockies that is still accessible from the parking lot (with a bit of work for the feet) and not have to overnight in the backcountry.