Which of the following is NOT one of the four characteristics of an Appaloosa?

The characteristic that is not associated with an Appaloosa is the golden brown coat. Appaloosas are known for their distinctive spotted coat patterns, mottled skin around the muzzle, and white sclera around the eyes, which contribute to their unique appearance. The golden brown coat is not a defining trait of the breed; rather, Appaloosas can come in a variety of colors and patterns, including but not limited to black, bay, and chestnut, often showcasing their signature spots. The focus on the specific traits highlights the importance of recognizing the visual markers that identify the breed, and the absence of the golden brown coat as part of their characteristics underscores the diversity within their coloring.