The Colorful Adams County series is a play on words. Each cache is placed on a road that has a color in its name, portion of its name or pronunciation of its name. That really is the main hint!
You are looking for a small lock and lock filled with traditional swag. The first catchers will find 2014 Ritzville Cache Cow marbles.
Update: Different container style than when originally placed. Please make sure lid is on correctly.