Location: Rocky Mountain National Park, CO / Settings: (Composite) Light-art at F16, ISO 100, 165 seconds. Stars at F2.8, ISO 3200, 15 seconds.
The last thing you want to happen in the Rocky Mountains is for your car battery to die (and not have jumper cables) - at night the temperature at that elevation drops to the lower 40's quickly.
I was able to flag down a truck with a flashlight and talk to a very nice couple who told me that they did not have jumper cables, but they could get ahold of the nearest ranger on their way out. They hooked us up a few hand-warmers before leaving, a really nice gesture.
Thankfully, within the next 20 minutes, Ranger Walt showed up and jumped our car. I shot this image on our way out of the park with the engine running nearby, I would have loved to stay longer but did not want to push our luck!
Here's a view of the tundra earlier that day - this elk was enjoying the view: