The Crystal River in Colorado is a small to medium-sized freestone river that flows approximately 35 miles from its headwaters above Marble to its confluence with the Roaring Fork River in Carbondale. Often overlooked in favor of the more famous Roaring Fork and Fryingpan Rivers in the same valley, the Crystal offers excellent fishing opportunities with less crowding. The river runs through some of Colorado's most scenic alpine landscapes, including the White River National Forest, and features varied water from flat sections to boulder-strewn plunge pools. Known for its crystal-clear waters when conditions are favorable, the river can become muddy during spring runoff or after heavy rains due to the geological makeup of the surrounding area.