The Colorado Tributary is a river system that flows through the state of Colorado in the United States. It is made up of four rivers: the Orinoco, Dolores, GILA, and Osage. The Orinoco is a 7-letter tributary that originates in the San Juan Mountains and flows through the Grand Valley before joining the Colorado River. The Dolores is a 7-letter tributary that begins in the San Juan Mountains and flows through the Dolores River Canyon before joining the Colorado River. The GILA is a 4-letter tributary that starts in the San Juan Mountains and flows through the GILA National Forest before joining the Colorado River. Finally, the Osage is a 5-letter tributary that begins in the San Juan Mountains and flows through the Osage National Forest before joining the Colorado River. All four of these rivers are important sources of water for the state of Colorado.