One station on the Tamayariak River measures tundra water flow. Another station on the Canning River measures flow from mountain discharge. Member of US Geological Survey National Water Information System. Tamayariak River, North Slope Borough, Alaska Hydrologic Unit Code 19060501 Latitude 69°51'55", Longitude 145°35'34" NAD27 Drainage area 149 square miles Gage datum 325 feet above sea level NGVD29 Location: Canning River, North Slope Borough, Alaska Hydrologic Unit Code 19060501 Latitude 69°52'55", Longitude 146°23'09" NAD27 Drainage area 1,930 square miles Gage datum 338 feet above sea level NGVD29