IGLD 1985 is currently being updated to IGLD 2020. Please visit the CO-OPS Datum Updates web pages for more information.
| STA. # | LWD METERS | LWD FEET | STATION NAME, STATE & BODY OF WATER | IGLD 1985 | |
| ST. LAWRENCE RIVER (CHART DATUM/LWD - SEE STATION VALUE FOR SLOPING SURFACE) | |||||
| 8311030 | 73.88 | 242.4 | Ogdensburg, NY St. Lawrence River | ||
| 8311062 | 74.07 | 243.0 | Alexandria Bay, NY St. Lawrence River | ||
| LAKE ONTARIO (CHART DATUM/LWD 74.2 M - 243.3 FT.) | |||||
| 9052000 | 74.2 | 243.3 | Cape Vincent, NY Lake Ontario | ||
| 9052030 | 74.2 | 243.3 | Oswego, NY Lake Ontario | ||
| 9052058 | 74.2 | 243.3 | Rochester, NY Lake Ontario NY | ||
| 9052076 | 74.2 | 243.3 | Olcott, NY Lake Ontario | ||
| NIAGARA RIVER (NON NAVIGABLE WATERS) | |||||
| 9063007 | N/A | N/A | Ashland Ave., NY Niagara Falls - Below the falls | ||
| 9063009 | N/A | N/A | American Falls, NY Niagara Falls - Above the Falls | ||
| 9063012 | N/A | N/A | Niagara Intake, NY Niagara River - Power diversion water intakes | ||
| LAKE ERIE (CHART DATUM/LWD 173.5 M - 569.2 FT.) | |||||
| 9063020 | 173.5 | 569.2 | Buffalo, NY Lake Erie | ||
| 9063028 | 173.5 | 569.2 | Sturgeon Point, NY Lake Erie | ||
| 9063038 | 173.5 | 569.2 | Erie, PA Lake Erie | ||
| 9063053 | 173.5 | 569.2 | Fairport, OH Lake Erie | ||
| 9063063 | 173.5 | 569.2 | Cleveland, OH Lake Erie | ||
| 9063079 | 173.5 | 569.2 | Marblehead, OH Lake Erie | ||
| 9063085 | 173.5 | 569.2 | Toledo, OH Lake Erie | ||
| 9063090 | 173.5 | 569.2 | Fermi Power Plant, MI Lake Erie | ||
| DETROIT RIVER (CHART DATUM/LWD - SEE STATION VALUE FOR SLOPING SURFACE) | |||||
| 9044020 | 173.58 | 569.5 | Gibraltar, MI Detroit River | ||
| 9044030 | 173.95 | 570.7 | Wyandotte, MI Detroit River | ||
| 9044036 | 174.08 | 571.1 | Fort Wayne, MI Detroit River | ||
| 9044049 | 174.34 | 572.0 | Windmill Point, MI Detroit River | ||
| LAKE ST. CLAIR (CHART DATUM/LWD 174.4 M - 572.3 FT.) | |||||
| 9034052 | 174.4 | 572.3 | St. Clair Shores, MI Lake St. Clair | ||
| ST. CLAIR RIVER (CHART DATUM/LWD - SEE STATION VALUE FOR SLOPING SURFACE) | |||||
| 9014070 | 174.58 | 572.8 | Algonac, MI St. Clair River | ||
| 9014080 | 175.08 | 574.4 | St. Clair State Police, MI St. Clair River | ||
| 9014084 | 175.35 | 575.3 | Marysville, MI St. Clair River (inactive) | ||
| 9014087 | 175.50 | 575.8 | Dry Dock, MI St. Clair River | ||
| 9014090 | 175.62 | 576.2 | Mouth of the Black River, MI St. Clair River | ||
| 9014096 | 175.77 | 576.7 | Dunn Paper, MI St. Clair River | ||
| 9014098 | 175.93 | 577.2 | Fort Gratiot, MI St. Clair River | ||
| STA. # | LWD METERS | LWD FEET | STATION NAME, STATE & BODY OF WATER | IGLD 1985 | |
| LAKE HURON (CHART DATUM/LWD 176.0 M - 577.5 FT.) | |||||
| 9075002 | 176.0 | 577.5 | Lakeport, MI Lake Huron | ||
| 9075014 | 176.0 | 577.5 | Harbor Beach, MI Lake Huron | ||
| 9075035 | 176.0 | 577.5 | Essexville, MI Lake Huron | ||
| 9075059 | 176.0 | 577.5 | Harrisville, MI Lake Huron (inactive) | ||
| 9075065 | 176.0 | 577.5 | Alpena, MI Lake Huron | ||
| 9075080 | 176.0 | 577.5 | Mackinaw City, MI Lake Huron | ||
| 9075099 | 176.0 | 577.5 | De Tour Village, MI Lake Huron | ||
| LOWER - ST. MARY'S RIVER (CHART DATUM/LWD - SEE STATION VALUE FOR SLOPING SURFACE) | |||||
| 9076024 | 176.03 | 577.5 | Rock Cut, MI St. Mary's River | ||
| 9076027 | 176.11 | 577.8 | West Neebish Island, MI | ||
| 9076028 | 176.12 | 577.8 | Lookout Station #4, MI St Mary's River (inactive) | ||
| 9076033 | 176.30 | 578.4 | Little Rapids, MI St Mary's River | ||
| 9076060 | 176.38 | 578.7 | U.S. Slip, MI St. Mary's River | ||
| UPPER - ST. MARY'S RIVER (CHART DATUM/LWD - SEE STATION VALUE FOR SLOPING SURFACE) | |||||
| 9076070 | 183.00 | 600.4 | S.W. Pier, MI St. Mary's River | ||
| LAKE MICHIGAN (CHART DATUM/LWD 176.0 M - 577.5 FT.) | |||||
| 9087023 | 176.0 | 577.5 | Ludington, MI Lake Michigan | ||
| 9087031 | 176.0 | 577.5 | Holland, MI Lake Michigan | ||
| 9087044 | 176.0 | 577.5 | Calumet Harbor, IL Lake Michigan | ||
| 9087057 | 176.0 | 577.5 | Milwaukee, WI Lake Michigan | ||
| 9087068 | 176.0 | 577.5 | Kewaunee, WI Lake Michigan | ||
| 9087072 | 176.0 | 577.5 | Sturgeon Bay Canal, WI Lake Michigan | ||
| 9087077 | 176.0 | 577.5 | Green Bay East, WI Lake Michigan | ||
| 9087079 | 176.0 | 577.5 | Green Bay, WI Lake Michigan | ||
| 9087088 | 176.0 | 577.5 | Menominee, MI Lake Michigan | ||
| 9087096 | 176.0 | 577.5 | Port Inland, MI Lake Michigan | ||
| LAKE SUPERIOR (CHART DATUM/LWD 183.2 M - 601.1 FT.) | |||||
| 9099004 | 183.2 | 601.1 | Point Iroquois, MI Lake Superior | ||
| 9099018 | 183.2 | 601.1 | Marquette C.G. MI Lake Superior | ||
| 9099044 | 183.2 | 601.1 | Ontonagon, MI Lake Superior | ||
| 9099064 | 183.2 | 601.1 | Duluth, MN Lake Superior | ||
| 9099090 | 183.2 | 601.1 | Grand Marais, MN Lake Superior | ||