I'm starting to kind of get a grasp of West Cost geography, so I believe these are the Sierra Nevadas:
Not sure about these, but they're still awesome:
Coming into Las Vegas - I have a sob story about Lake Mead, but I'll spare you now and just say the main reason for the window seat was to get the photos I didn't get last time. However, Lake Mead is pretty green, so I don't know that this is it, but oh well, it's still a pretty lake.
Leaving Las Vegas:
And the piece de resistance - the closest I'll ever get - it's the Grand Canyon!