These green rocks were along the road near Sunlight Basin in Wyoming. A few of them might have found their way into the car and made the trip back to Wisconsin with me!
Not exactly like The Long Long Trailer, @shasta, but close!
None of the rocks that I brought home qualify as boulders. They are small and fit nicely on my bookshelves and are one of my favorite souvenirs from the trip.
@shasta