South Platte
185 Colorado mutual ditch and reservoir companies in the South Platte basin, listed alphabetically.
- Anderson Ditch Company — Boulder
- B. H. Eaton Ditch Company — Windsor
- Base Line Land And Reservoir Company — Lafayette
- Baugh Lateral Ditch And Reservoir Company — Longmont
- Beaver Creek Ditch Company — Brush
- Beckwith Ditch And Reservoir Company — Longmont
- Bee Line Ditch Company — Milliken
- Berthoud-Gateway Park Irrigation Company — Greeley
- Big Cut Lateral And Reservoir Company — Windsor
- Big Lateral Ditch Co. — Loveland
- Big Thompson And Platte River Ditch Company — Milliken
- Big Thompson Ditch And Manufacturing Company — Loveland
- Bijou Irrigation Company — Fort Morgan
- Bijou Lateral #5 Ditch Company — Fort Morgan
- Bijou Lateral Ditch Company — Fort Morgan
- Bliss Lateral & Irrigation Company — Pierce
- Blue Lake Reservoir Company — Boulder
- Bonus Ditch Company — Longmont
- Boyd Irrigation Company — Greeley
- Bravo Ditch Company — Sterling
- Brighton Ditch Company — Fort Lupton
- Briscoe Irrigation Company — Greeley
- Buckingham Irrigation Company — Loveland
- Butte Irrigating And Milling Company — Longmont
- Cache La Poudre Reservoir Company — Lucerne
- Clennon Lateral Ditch Company — Platteville
- Clinton Ditch & Reservoir Company — Broomfield
- Clover Basin Irrigation Company — Longmont
- Cole Ditch Company — Greeley
- Consolidated Hillsborough Ditch Company — Johnstown
- Consolidated Home Supply Ditch And Reservoir Company — Berthoud
- Cooke Irrigation Company — Lucerne
- Darnell Lateral Ditch Company — Windsor
- Dave Miller Mutual Ditch Company — Lyons
- Delta Irrigation Company — Greeley
- Demmel Lake Estates Homeowners Irrigation Association, LLC — Wellington
- Desert Reservoir Company — Boulder
- District 64 Reservoir Company — Sterling
- Divide Canal And Reservoir Company — Eaton
- Dixon Canon Ditch And Reservoir Company — Fort Collins
- Dry Creek Lateral Ditch Company — Berthoud
- Dry Creek No. 2. Ditch Company — Louisville
- Dry Creek-Davidson Ditch Company — Louisville
- Eaton-Law Reservoir Company — Windsor
- Emigh Lateral Ditch Company — Fort Collins
- Erkenbeck Lateral Ditch Company — Platteville
- Extension Irrigation Company — Johnstown
- Farmer's Ditch Company — Longmont
- Farmers Extension Ditch Company — Johnstown
- Farmers Independent Ditch Co — Greeley
- Farmers Irrigating Ditch & Reservoir Company — Loveland
- Finley Lateral Ditch Company — Windsor
- Fort Morgan Reservoir and Irrigation Company — Fort Morgan
- Geoff's Ditch LLC — Greeley
- Godfrey Ditch Company — La Salle
- Goodhue Ditch & Reservoir Company — Louisville
- Grapevine Lateral Ditch Company — Greeley
- Gray Lateral Ditch Company — Johnstown
- Greeley and Loveland Irrigation Company — Greeley
- Greeley Irrigation Company — Greeley
- Green Acres Irrigation Company — Greeley
- Green Ditch Company — Longmont
- Haldi Ditch Company — Boulder
- Handy Ditch Company — Berthoud
- Harry Lateral Ditch Company — Johnstown
- Highland Ditch Company — Longmont
- Highland Lake Lateral Ditch Company — Longmont
- Highland Lake Reservoir Company — Longmont
- Hillsborough Extension Ditch Co. — Johnstown
- Hillside Estates Irrigation Co. LLC — Niwot
- Home Supply Extension Ditch Company — Johnstown
- Howard Ditch Company — Longmont
- Ish Reservoir Company — Johnstown
- Jackson Ditch Company — Fort Collins
- Jackson Lake Reservoir And Irrigation Company — Fort Morgan
- James Ditch Minority Shareholders Association, LLC — Longmont
- Jim Eglin Ditch Co — Berthoud
- Jones And Donnelly Ditch Company — Longmont
- Kern Reservoir And Ditch Company — Windsor
- Kitchell Reservoir Company — Fort Collins
- Lake McIntosh Reservoir Company — Longmont
- Lakeside Lateral Ditch Company — Eaton
- Larimer And Weld Irrigation Company — Eaton
- Larimer And Weld Reservoir Company — Eaton
- Last Chance Ditch Company — Longmont
- Layton Lateral Ditch Company — Fort Morgan
- Left Hand Ditch Company — Boulder
- Leggett Ditch And Reservoir Company — Longmont
- Leyner-Cottonwood Consolidated Ditch Co. — Lafayette
- Liddle Ditch Co. — Ovid
- Lone Tree Ditch And Lateral Company — Greeley
- Louden Extension Canal And Reservoir Company — Loveland
- Louden Irrigating Canal & Reservoir Company — Loveland
- Loveland Lake and Ditch Company — Berthoud
- Lower Latham Ditch Company — Greeley
- Lower Latham Extension Ditch Company — Greeley
- Lower Latham Reservoir Company — Greeley
- Lucas Lateral Ditch Company — Eaton
- Lupton Bottom Ditch Company — Fort Lupton
- Lupton Meadows Ditch Company — Fort Lupton
- Lyons Ditch Company — Lyons
- Marshallville Ditch Co. — Louisville
- Masonville Union Ditch And Reservoir Company — Loveland
- Matthews Farms Estates Irrigation Water Company, LLC — Longmont
- Mc Intyre Lateral Ditch Company — Berthoud
- McGinn Ditch Company — Boulder
- Meadow Ditch Company — Lyons
- Meadow Island Ditch Company No. 2 — Platteville
- Montgomery Lateral Ditch Company — Eaton
- Morgan-Prewitt Reservoir Company — Fort Morgan
- Nauman Lake Reservoir Company — Greeley
- New Cache La Poudre Irrigating Company — Lucerne
- New Coal Ridge Ditch Company — Longmont
- New Hinman Ditch Company — Longmont
- New Sand Creek Lateral Irrigation Company — Greeley
- New Table Mountain Ditch Company — Longmont
- New Von Gohren Lateral Ditch Co. — Greeley
- Niwot Ditch Company — Longmont
- No. 10 Ditch Company — Fort Collins
- No. 3 Outlet Ditch Company — Mead
- North Boulder Farmers Ditch Company — Longmont
- North Eastern Colorado Irrigation Company, LLC — Loveland
- North Poudre Irrigation Company — Wellington
- North Star Irrigation Company — Fort Collins
- North Tollgate Ditch Company — Longmont
- Ogilvy Irrigating and Land Company — Greeley
- Olsen Mutual Ditch Company — Greeley
- Original Cottonwood Ditch Company — Boulder
- Osborn Lateral Ditch Company — Berthoud
- Ovid Reservoir Company — Julesburg
- Owl Creek Reservoir Company — Windsor
- Owl Creek Supply and Irrigation Company — Eaton
- Palmerton Consolidated Ditch Company — Longmont
- Peck Ditch Company — Longmont
- Peery Ditch Company — Wellington
- Pella Ditch Company — Longmont
- Pinnacle Park Irrigation Company — Greeley
- Plains Irrigation Company, Inc. — Sterling
- Platte Valley Irrigation Company — Greeley
- Platteville Irrigating And Milling Company — Platteville
- Plumb Irrigation Company — Greeley
- Red Feather Storage and Irrigation Company — Red Feather Lakes
- Reorganized Farmers' Ditch Company — Loveland
- Riverside Reservoir And Land Company — Fort Morgan
- Rockwell Ditch Company — Berthoud
- Ryan Gulch Reservoir Company — Loveland
- Sanborn Reservoir and Ditch Company — Platteville
- Sand Dike Ditch Company — Fort Collins
- Schneider Ditch Company — Sterling
- Seven Lakes Reservoir Company — Greeley
- Shamrock Irrigation Company, Inc. — Fort Collins
- Silver Lake Ditch And Reservoir Company — Boulder
- Skyline Ditch Company LLC — Greeley
- Slate Ditch Company — Fort Lupton
- Snyder-Smith Ditch Co. — Brush
- South Boulder And Bear Creek Ditch Company — Lafayette
- South Boulder And Coal Creek 1st Extension Ditch Company — Louisville
- South Boulder And Coal Creek Irrigating Ditch Comp — Louisville
- South Flat Ditch Company — Longmont
- South Ledge Ditch Company — Longmont
- South Platte Ditch Company — Merino
- South Platte Ditch Well Users, Inc. — Merino
- South Reservation Ditch Corporation — Julesburg
- South Side Ditch Company — Loveland
- South Side Ditch Extension Company — Loveland
- South Side Reservoir Company — Loveland
- SPL Ditch Company — Greeley
- Sterling Irrigation Company — Sterling
- Sunny Slope Reservoir Company — Berthoud
- Taylor & Gill Ditch Company — Laporte
- Thompson Rivers Storage And Irrigation Company, LLC — Loveland
- Trilby Lateral Ditch Company — Fort Collins
- Union Ditch Company — Greeley
- Union Mutual Ditch Company — Brush
- Union Reservoir Company — Greeley
- Upper Baldwin Ditch Company — Longmont
- W. R. Blower Mutual Ditch Company, Inc. — Longmont
- Weldon Valley Ditch Company — Weldona
- West Irrigation Company — Eaton
- Western Mutual Ditch Company — La Salle
- Whipple Lateral Ditch Company — Berthoud
- Williamson Ditch Company — Longmont
- Windsor Reservoir & Canal Company — Eaton
- Yellowstone Lateral Ditch Company — Longmont
- Zweck And Turner Ditch Company — Longmont