Colorado drainage basins Table of major drainage basins Major Drainage Basins of the State of Colorado

| Basin | Outlet | Total_Area | In_State_Area | _In_State |
|---|---|---|---|---|
| Saguache Creek | San Luis Creek | 043 3,482km 2 1,345mi 2 | 029 3,482km 2 1,345mi 2 | A011 100% |
| Montezuma Creek | San Juan River | 044 3,044km 2 1,175mi 2 | 062 983km 2 380mi 2 | A054 32.3% |
| White Woman Creek | White Woman Basin | 045 3,000km 2 1,158mi 2 | 066 800km 2 309mi 2 | A056 26.7% |
| Beaver Creek | South Platte River | 046 2,939km 2 1,135mi 2 | 031 2,939km 2 1,135mi 2 | A012 100% |
| Uncompahgre River | Gunnison River | 047 2,921km 2 1,128mi 2 | 032 2,921km 2 1,128mi 2 | A013 100% |
| Tomichi Creek | Gunnison River | 048 2,874km 2 1,109mi 2 | 033 2,874km 2 1,109mi 2 | A014 100% |
| Apishapa Creek | Arkansas River | 049 2,798km 2 1,080mi 2 | 034 2,798km 2 1,080mi 2 | A015 100% |