Gila trout have been described as “taking their colors from the New Mexican sunset”, an apt description. Their iridescent gold sides blend to a darker shade of copper on the gill covers. Small, profuse spots cover the upper half of the body and a faint, salmon-pink band is present on adults, particularly during spawning season. A yellow cutthroat mark is present on most larger fish and parr marks are commonly found on adults. Because Gila trout are often found in small streams, they rarely grow larger than 12 inches.