Thank you all for the comments!
Originally posted by jays0n 
Wow, is that really a reflection? Just wow. If there was a reflections contest this is it hands down. It was worth your efforts to do this each year for sure. Thanks for sharing.
It was indeed just a reflection on the water. The water was not completely still, but still enough that a 10 second exposure could produce a relatively crisp reflection. I've had a photo once of a lake where the reflection was so perfect people literally could not tell which side was up if I flipped it, unless you knew what to look for (the reflection is darker).
Originally posted by GeoJerry Superb photo! I especially like the light on the mountain. I have the Samyang 14 mm but not the 24 mm. Have you tried the 14 mm? I'm really happy with it, and this looks just as good.
Unfortunately I don't have the 14mm. I bought the 24mm as it's the widest f/1.4 lens available for Pentax right now. Optically it's alright. On FF at f/1.4 there's quite a bit of vignetting and corners are a little soft, as to be expected, but for nightscapes, light gathering capability and angle of view trumps all, and it works very well for that as you can see.
14mm on FF is great for capturing the Milky Way spanning the sky when you're very close to the foreground objects, but IMO it is a little too wide for mountainous landscapes. While mountains like Mount Hood look gigantic in person, ultra-wides make them look small. 24mm is a good balance, and I think 20mm would also work well. There's surprisingly little info out there regarding the Samyang 20mm f/1.8 which I'm thinking of trying some time.
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