Rio Grande County
14 Colorado mutual ditch and reservoir companies have DWR-verified water structures in Rio Grande County, the oldest decreed right dating to 1870. 16 companies list a registered address in a city located in — or partly in — Rio Grande County.
| Company | Standing | Verified structures | Relationship |
|---|---|---|---|
| Anaconda Ditch Co., Incorporated | Delinquent | 1 WDID | Operates structures in Rio Grande County Registered in South Fork |
| Billings Ditch Company | In good standing | 1 WDID | Operates structures in Rio Grande County |
| Centenial Irrigating Ditch Company | In good standing | — | Registered in Monte Vista |
| Centennial Irrigating Ditch Company | — | 1 WDID | Operates structures in Rio Grande County |
| Commonwealth Irrigation Company | In good standing | 1 WDID | Operates structures in Rio Grande County |
| Consolidated Ditch And Headgate Company | In good standing | — | Registered in Monte Vista |
| Excelsior Ditch Company | Delinquent | — | Registered in Monte Vista |
| La Garita Reservoir Company | Delinquent | — | Registered in South Fork |
| Lariat Irrigation Company | In good standing | — | Registered in Monte Vista |
| McDonald Ditch Company | "Exists" (as recorded by the Secretary of State) | 1 WDID | Operates structures in Rio Grande County |
| Meadow Glen Ditch LLC | In good standing | 1 WDID | Operates structures in Rio Grande County Registered in Del Norte |
| Midland Ditch Company | "Exists" (as recorded by the Secretary of State) | 1 WDID | Operates structures in Rio Grande County |
| Prairie Ditch Company (The) (Water) | In good standing | 2 WDIDs | Operates structures in Rio Grande and Alamosa counties |
| Rio Grande And Piedra Valley Ditch Company | In good standing | 1 WDID | Operates structures in Rio Grande County Registered in Del Norte |
| Rio Grande And San Luis Irrigation Company | In good standing | 1 WDID | Operates structures in Rio Grande County Registered in Monte Vista |
| Rio Grande Canal Water Users Association | In good standing | — | Registered in Monte Vista |
| Rio Grande Ditch No. 1 Company | In good standing | 1 WDID | Operates structures in Rio Grande County |
| Rio Grande Ditch No. 4 Company | "Exists" (as recorded by the Secretary of State) | 1 WDID | Operates structures in Rio Grande County |
| San Luis Valley Irrigation Well Owners, Inc. | In good standing | — | Registered in Monte Vista |
| Santa Maria Reservoir Company | In good standing | — | Registered in Monte Vista |
| Terrace Irrigation Company | In good standing | — | Registered in Monte Vista |
| The Monte Vista Water Users Association | In good standing | — | Registered in Monte Vista |
| The San Luis Valley Canal Company | In good standing | 4 WDIDs | Operates structures in Rio Grande County Registered in Monte Vista |
| Willow Park Ditch Company | In good standing | 2 WDIDs | Operates structures in Rio Grande County Registered in South Fork |
Scroll the table sideways to see every column.
Standing is from the Colorado Secretary of State as of August 3, 2026: In good standing and “Exists” are both current statuses; Delinquent most commonly follows a missed Periodic Report (other causes exist — see the delinquency guide), usually fixable in one sitting; — means the company has no row in the current Secretary of State pull. Full explanation: what this check tells you.