HydrionisGlobal Water Intelligence
Monitoring network

United States monitoring network

Hydrionis holds continuous records from 2,680 monitoring locations in United States, the earliest opening in 1874.

2,680 locations1874–2026
2,680
Monitoring locations
231,620
Observations held
1874–2026
Record span
3
Kinds of measurement

Where the network is

United States monitoring network
1,750 river gauges · 838 sampling and rain gauges · 92 monitored reservoirs
United States monitoring network400 locations, each labelled individually.Barry — Sampling and rain gauge, 2014–2024Colbert — Sampling and rain gauge, 2014–2015Holcomb — Sampling and rain gauge, 2014–2024Seminole (FL) — Sampling and rain gauge, 2014–2024St Johns River Power Park — Sampling and rain gauge, 2014–2017Ormond Beach — Sampling and rain gauge, 2014–2024Scattergood — Sampling and rain gauge, 2014–2024Nucla — Sampling and rain gauge, 2014–2018Bridgeport Station — Sampling and rain gauge, 2014–2019Lauderdale — Sampling and rain gauge, 2014–2018Suwannee River — Sampling and rain gauge, 2014–2015C D McIntosh Jr — Sampling and rain gauge, 2014–2024Jack McDonough — Sampling and rain gauge, 2014–2024Coffeen — Sampling and rain gauge, 2014–2018Waukegan — Sampling and rain gauge, 2014–2021Dallman — Sampling and rain gauge, 2014–2023Bailly — Sampling and rain gauge, 2014–2017Wabash River — Sampling and rain gauge, 2014–2015Riverside — Sampling and rain gauge, 2014–2018Fort Dodge — Sampling and rain gauge, 2014–2024Quindaro — Sampling and rain gauge, 2014–2017Mill Creek (KY) — Sampling and rain gauge, 2014–2024Louisiana 1 — Sampling and rain gauge, 2014–2014Sterlington — Sampling and rain gauge, 2014–2018William F Wyman Hybrid — Sampling and rain gauge, 2014–2017Mystic Generating Station — Sampling and rain gauge, 2014–2020Palisades — Sampling and rain gauge, 2014–2021Trenton Channel — Sampling and rain gauge, 2014–2019High Bridge — Sampling and rain gauge, 2014–2024Jack Watson — Sampling and rain gauge, 2014–2024Sibley — Sampling and rain gauge, 2014–2018James River Power Station — Sampling and rain gauge, 2014–2014Fort Calhoun — Sampling and rain gauge, 2014–2015Schiller — Sampling and rain gauge, 2014–2019Four Corners — Sampling and rain gauge, 2014–2024Arthur Kill Generating Station — Sampling and rain gauge, 2014–2024Greenidge Generation LLC — Sampling and rain gauge, 2016–2024G G Allen — Sampling and rain gauge, 2014–2024Leland Olds — Sampling and rain gauge, 2014–2024Horseshoe Lake — Sampling and rain gauge, 2014–2023Tulsa — Sampling and rain gauge, 2014–2024Shawville — Sampling and rain gauge, 2014–2024Peach Bottom — Sampling and rain gauge, 2014–2024Urquhart — Sampling and rain gauge, 2014–2024John Sevier — Sampling and rain gauge, 2014–2024Mountain Creek — Sampling and rain gauge, 2014–2024T H Wharton — Sampling and rain gauge, 2020–2024Graham — Sampling and rain gauge, 2014–2024Ray Olinger — Sampling and rain gauge, 2014–2024Clinch River — Sampling and rain gauge, 2014–2024Surry — Sampling and rain gauge, 2014–2024FirstEnergy Harrison Power Station — Sampling and rain gauge, 2014–2024Valley (WI) — Sampling and rain gauge, 2014–2024Genoa — Sampling and rain gauge, 2014–2020Barney M Davis — Sampling and rain gauge, 2014–2024FirstEnergy Pleasants Power Station — Sampling and rain gauge, 2014–2024Newton — Sampling and rain gauge, 2014–2024LaSalle Generating Station — Sampling and rain gauge, 2014–2024H L Spurlock — Sampling and rain gauge, 2014–2024Big Cajun 2 — Sampling and rain gauge, 2014–2024Victor J Daniel Jr — Sampling and rain gauge, 2014–2024Nebraska City — Sampling and rain gauge, 2014–2024James A Fitzpatrick — Sampling and rain gauge, 2014–2024V C Summer — Sampling and rain gauge, 2014–2024Monticello — Sampling and rain gauge, 2014–2017Rockport — Sampling and rain gauge, 2014–2024Oak Grove (TX) — Sampling and rain gauge, 2014–2024Laramie River Station — Sampling and rain gauge, 2014–2024Ottumwa — Sampling and rain gauge, 2014–2023R D Green — Sampling and rain gauge, 2014–2022Hugo — Sampling and rain gauge, 2014–2024Clover — Sampling and rain gauge, 2014–2024Arthur Von Rosenberg — Sampling and rain gauge, 2014–2023Bonanza — Sampling and rain gauge, 2014–2024E B Harris Electric Generating Plant — Sampling and rain gauge, 2014–2024Grays Harbor Energy Facility — Sampling and rain gauge, 2014–2024Cooper Nuclear Station — Sampling and rain gauge, 2014–2024Jim Bridger — Sampling and rain gauge, 2015–2024Coyote — Sampling and rain gauge, 2014–2024Fernandina Beach Mill — Sampling and rain gauge, 2014–2024Rumford Cogeneration — Sampling and rain gauge, 2015–2024Silver Bay Power — Sampling and rain gauge, 2014–2022Pixelle Specialty Solutions LLC - Spring Grove Facility — Sampling and rain gauge, 2014–2024Covanta Fairfax Energy — Sampling and rain gauge, 2014–2024Motiva Enterprises Port Arthur Refinery — Sampling and rain gauge, 2019–2024Freeport Energy — Sampling and rain gauge, 2014–2024Sithe Independence Station — Sampling and rain gauge, 2014–2024Mid-Georgia Cogeneration Facility — Sampling and rain gauge, 2014–2024Mustang Station — Sampling and rain gauge, 2014–2024Taft Cogeneration Facility — Sampling and rain gauge, 2014–2024Magic Valley Generating Station — Sampling and rain gauge, 2014–2024Wolf Hollow I LP — Sampling and rain gauge, 2014–2024Lost Pines 1 Power Project — Sampling and rain gauge, 2014–2024Dogwood Energy Facility — Sampling and rain gauge, 2014–2024Corpus Christi Energy Center — Sampling and rain gauge, 2014–2024Harry L. Oswald — Sampling and rain gauge, 2014–2024Whiting Clean Energy — Sampling and rain gauge, 2014–2024Morgan Energy Center — Sampling and rain gauge, 2014–2024Ingleside Cogeneration — Sampling and rain gauge, 2014–2024Ironwood LLC — Sampling and rain gauge, 2014–2024Harquahala Generating Project — Sampling and rain gauge, 2014–2024Carville Energy LLC — Sampling and rain gauge, 2014–2024Tenaska Virginia Generating Station — Sampling and rain gauge, 2014–2023Ouachita — Sampling and rain gauge, 2014–2024Lawrenceburg Power, LLC — Sampling and rain gauge, 2014–2024Riverside Energy Center — Sampling and rain gauge, 2014–2024Quantum Choctaw Power LLC — Sampling and rain gauge, 2014–2024Los Esteros Critical Energy Center — Sampling and rain gauge, 2014–2024Jasper — Sampling and rain gauge, 2015–2024Elm Road Generating Station — Sampling and rain gauge, 2014–2024Lake Side Power Plant — Sampling and rain gauge, 2014–2024Plum Point Energy Station — Sampling and rain gauge, 2014–2024Spiritwood Station — Sampling and rain gauge, 2015–2024Langley Gulch Power Plant — Sampling and rain gauge, 2014–2024Panda Sherman Power Station — Sampling and rain gauge, 2015–2024Nelson Energy Center — Sampling and rain gauge, 2016–2024Carty Generating Station — Sampling and rain gauge, 2017–2024Oregon Clean Energy Center — Sampling and rain gauge, 2018–2024Middletown Energy Center — Sampling and rain gauge, 2019–2024Birdsboro Power — Sampling and rain gauge, 2020–2024PEA RIVER NEAR SAMSON AL — River gauge, 1905–2025TENNESSEE RIVER AT WHITESBURG AL — River gauge, 1938–1994ALABAMA RIVER NEAR MONTGOMERY, AL. — River gauge, 1928–2023BLACK WARRIOR RIVER AT NORTHPORT AL — River gauge, 1895–2024BRIGHT ANGEL CREEK NEAR GRAND CANYON, ARIZ. — River gauge, 1924–1991SALT RIVER NEAR ROOSEVELT, AZ — River gauge, 1914–2024GILA RIVER AT CALVA, AZ — River gauge, 1930–2025Eleven Point River near Ravenden Springs, AR — River gauge, 1930–2025WHITE RIVER AT CLARENDON, AR — River gauge, 1929–1980SHETUCKET RIVER NEAR WILLIMANTIC, CT — River gauge, 1929–2025SALMON RIVER NEAR EAST HAMPTON, CT — River gauge, 1929–2025SOUTH PLATTE RIVER BELOW CHEESMAN LAKE, CO — River gauge, 1925–2006BEAR CREEK AT MOUTH AT SHERIDAN, CO — River gauge, 1928–2006ST. VRAIN CREEK AT MOUTH, NEAR PLATTEVILLE, CO. — River gauge, 1928–1997ARKANSAS RIVER AT GRANITE, CO. — River gauge, 1911–2006HUERFANO R AT MANZANARES XING, NR REDWING, CO. — River gauge, 1924–1981SOUTH FORK RIO GRANDE AT SOUTH FORK, CO — River gauge, 1911–2006ALAMOSA RIVER ABOVE TERRACE RESERVOIR, CO. — River gauge, 1916–1981COLORADO RIVER NEAR GRAND LAKE, CO. — River gauge, 1905–1985BLUE RIVER AT DILLON, CO. — River gauge, 1911–1960SAN MIGUEL RIVER NEAR PLACERVILLE, CO — River gauge, 1911–2024WHITE RIVER NEAR MEEKER, CO. — River gauge, 1910–2025GUNNISON RIVER BELOW GUNNISON TUNNEL, CO — River gauge, 1911–2025Kawaikoi Stream nr Waimea, Kauai, HI — River gauge, 1914–2025SF Wailua River nr Lihue, Kauai, HI — River gauge, 1912–2020Moanalua Str nr Honolulu, Oahu, HI — River gauge, 1927–1977Koolau Ditch near Keanae, Maui, HI — River gauge, 1910–1984HOOLAWANUI STREAM NR HUELO, MAUI, HI — River gauge, 1911–1970HONOKOWAI DITCH NEAR LAHAINA, MAUI, HI — River gauge, 1913–1966Hanawi Stream near Nahiku, Maui, HI — River gauge, 1922–2024BIG PINE C NR BIG PINE CA — River gauge, 1921–1977ST. MARYS RIVER NEAR MACCLENNY, FL — River gauge, 1927–2025OCHLOCKONEE RIVER NR HAVANA, FLA. — River gauge, 1927–2025SWEETWATER R NR DESCANSO CA — River gauge, 1957–2025SANTA MARGARITA R NR FALLBROOK,CALIF. — River gauge, 1925–1979W WALKER RV NR COLEVILLE, CA — River gauge, 1903–2025TRUCKEE R A FARAD CA — River gauge, 1909–2025SANTA ANITA C NR SIERRA MADRE CA — River gauge, 1917–1969LYTLE C NR FONTANA CA — River gauge, 1919–2025TEMESCAL C NR CORONA CA — River gauge, 1929–1979GUADALUPE R A SAN JOSE CA — River gauge, 1930–2002LOS ANGELES R A LONG BEACH CA — River gauge, 1930–1991SANTA YNEZ R A SOLVANG CA — River gauge, 1952–2024KINGS R AB NF NR TRIMMER CA — River gauge, 1927–1981COMBINED FLOW OF KERN R AND KERN R NO 3 CA — River gauge, 1912–2024BEAR C NR LAKE THOMAS A EDISON CA — River gauge, 1922–2024FRESNO R NR KNOWLES CA — River gauge, 1912–1989FALLS C NR HETCH HETCHY CA — River gauge, 1916–1982MODESTO CN NR LA GRANGE CA — River gauge, 1909–2025SAN JOAQUIN R NR VERNALIS CA — River gauge, 1930–2025MOKELUMNE R BL CAMANCHE DAM CA — River gauge, 1905–2024HAT C NR HAT CREEK CA — River gauge, 1927–2023THOMES C A PASKENTA CA — River gauge, 1921–1995CANYON C BL BOWMAN LK CA — River gauge, 1928–2024SF FEATHER R A ENTERPRISE CA — River gauge, 1912–1965MILTON-BOWMAN TUNNEL OUTLET NR GRANITEVILLE CA — River gauge, 1929–2024ALDER C NR WHITE HALL (TOTAL FLOW) CA — River gauge, 1923–1980PUTAH C NR GUENOC CA — River gauge, 1905–2025BEAR LAKE OUTLET CANAL NR PARIS ID — River gauge, 1922–2005POTTER VALLEY PH INTAKE NR POTTER VALLEY CA — River gauge, 1910–2024KLAMATH R A ORLEANS — River gauge, 1928–2024SNAKE RIVER NR HEISE ID — River gauge, 1911–2025CLARK FORK AT WHITEHORSE RAPIDS NR CABINET ID — River gauge, 1929–2013HENRYS FORK NR REXBURG ID — River gauge, 1910–2024P A LATERAL NR MILNER ID — River gauge, 1920–1977PORTNEUF RIVER AT POCATELLO ID — River gauge, 1913–2024CAMAS CREEK AT CAMAS ID — River gauge, 1927–2024SNAKE RIVER NR MURPHY ID — River gauge, 1914–2025LITTLE WOOD RIVER NR CAREY ID — River gauge, 1927–2024PAYETTE RIVER NR HORSESHOE BEND ID — River gauge, 1907–2025SALMON RIVER AT SALMON ID — River gauge, 1913–2024LOCHSA RIVER NR LOWELL ID — River gauge, 1911–2025FALL CREEK AT MILLERSVILLE, IN — River gauge, 1930–2025WHITE RIVER AT PETERSBURG, IN — River gauge, 1929–2025WABASH RIVER AT TERRE HAUTE, IN — River gauge, 1928–2025LITTLE WABASH RIVER BELOW CLAY CITY, IL — River gauge, 1915–2025KASKASKIA RIVER AT VANDALIA, IL — River gauge, 1970–2025PECATONICA RIVER AT FREEPORT, IL — River gauge, 1915–2025KANKAKEE RIVER NEAR WILMINGTON, IL — River gauge, 1936–2025SANGAMON RIVER AT RIVERTON, IL — River gauge, 1909–2025OCMULGEE RIVER AT MACON, GA — River gauge, 1911–2025FLINT RIVER AT US 19, NEAR CARSONVILLE, GA — River gauge, 1912–2025SUWANNEE RIVER AT US 441, AT FARGO, GA — River gauge, 1928–2025ICHAWAYNOCHAWAY CREEK AT MILFORD, GA — River gauge, 1906–2025Iowa River at Wapello, IA — River gauge, 1959–2025Raccoon River at Van Meter, IA — River gauge, 1916–2025Mississippi River at Clinton, IA — River gauge, 1874–2025BIG SIOUX RIVER AT AKRON, IA — River gauge, 1929–2024Thompson River at Davis City, IA — River gauge, 1919–2025GREEN RIVER AT MUNFORDVILLE, KY — River gauge, 1970–2025Bayou Cocodrie near Clearwater, LA — River gauge, 1923–2024SMOKY HILL R AT ELLSWORTH, KS — River gauge, 1896–2025KANSAS R AT TOPEKA, KS — River gauge, 1919–2025MARAIS DES CYGNES R NR OTTAWA, KS — River gauge, 1903–2025St. John River at Dickey, Maine — River gauge, 1947–2024VERDIGRIS R AT INDEPENDENCE, KS — River gauge, 1968–2025WEST BRANCH UNION RIVER AT AMHERST, ME — River gauge, 1910–1978Penobscot River at West Enfield, Maine — River gauge, 1903–2025Sandy River near Mercer, Maine — River gauge, 1929–2024Androscoggin River near Auburn, Maine — River gauge, 1929–2025NORTH BRANCH POTOMAC RIVER AT LUKE, MD — River gauge, 1900–2025MONOCACY RIVER AT JUG BRIDGE NEAR FREDERICK, MD — River gauge, 1930–2025MILLERS RIVER NEAR WINCHENDON, MA — River gauge, 1917–2025DEERFIELD RIVER NEAR WEST DEERFIELD, MA — River gauge, 1941–2025CHICOPEE RIVER AT INDIAN ORCHARD, MA — River gauge, 1929–2025GRAND RIVER AT LANSING, MI — River gauge, 1902–2025WEST BRANCH FARMINGTON RIVER NEAR NEW BOSTON, MA — River gauge, 1914–2025MENOMINEE RIVER AT US HWY-2 NEAR IRON MOUNTAIN, MI — River gauge, 1915–2025Grand River near Sumner, MO — River gauge, 1925–2025Pomme de Terre River at Hermitage, MO — River gauge, 1922–2025Missouri River at Waverly, MO — River gauge, 1958–2025Gasconade River near Waynesville, MO — River gauge, 1915–1970Meramec River near Steelville, MO — River gauge, 1923–2025St. Francis River near Patterson, MO — River gauge, 1922–2025Black River at Leeper, MO — River gauge, 1949–2025LUXAPALLILA CREEK NR COLUMBUS, MS — River gauge, 1929–2025PIGEON RIVER AT MIDDLE FALLS NR GRAND PORTAGE MN — River gauge, 1924–2025RED LAKE RIVER AT CROOKSTON, MN — River gauge, 1902–2025VERMILION RIVER BLW VERMILION LK NEAR TOWER, MN — River gauge, 1912–1980SAUK RIVER NEAR ST. CLOUD, MN — River gauge, 1910–2024COTTONWOOD RIVER NEAR NEW ULM, MN — River gauge, 1912–2024Swiftcurrent Creek at Many Glacier MT — River gauge, 1918–2024DES MOINES RIVER AT JACKSON, MN — River gauge, 1936–2024Tenmile Creek near Helena MT — River gauge, 1909–2023Missouri River at Fort Benton MT — River gauge, 1891–2025Musselshell River at Mosby MT — River gauge, 1931–2024Poplar River near Poplar MT — River gauge, 1909–2025Kootenai River at Libby MT — River gauge, 1911–1990S F Flathead River nr Columbia Falls MT — River gauge, 1929–2024Saco River near Conway, NH — River gauge, 1904–2025Clark Fork near Plains MT — River gauge, 1911–2025CONNECTICUT RIVER AT WEST LEBANON, NH — River gauge, 1913–2025MUDDY RV NR MOAPA, NV — River gauge, 1914–2025CARSON RV NR FORT CHURCHILL, NV — River gauge, 1912–2025HUMBOLDT RV AT BATTLE MOUNTAIN, NV — River gauge, 1897–2025TRUCKEE RV AT VISTA, NV — River gauge, 1900–2025NORTH PLATTE RIVER AT LISCO, NEBR. — River gauge, 1932–1997North Loup River near Saint Paul, Nebr. — River gauge, 1929–2025Passaic River near Millington NJ — River gauge, 1904–2025Wanaque River at Wanaque NJ — River gauge, 1913–2025Saddle River at Lodi NJ — River gauge, 1924–2025Lamington (Black) River near Pottersville NJ — River gauge, 1922–2024Swimming River near Red Bank NJ — River gauge, 1923–2023Beaver Brook near Belvidere NJ — River gauge, 1923–2025Assunpink Creek at Trenton NJ — River gauge, 1924–2025SOURIS RIVER ABOVE MINOT, ND — River gauge, 1904–2025MISSOURI RIVER AT BISMARCK, ND — River gauge, 1954–2024PONIL CREEK NEAR CIMARRON, NM — River gauge, 1916–2025CANADIAN RIVER NEAR SANCHEZ, NM — River gauge, 1913–2025RIO PUEBLO DE TAOS NEAR TAOS, NM — River gauge, 1913–2024SANTA FE RIVER NEAR SANTA FE, NM — River gauge, 1914–2025GALLINAS CREEK AT MONTEZUMA, NM — River gauge, 1905–1966GILA RIVER NEAR GILA, NM — River gauge, 1928–2020TAR RIVER AT TARBORO, NC — River gauge, 1897–2025SOUTH BUFFALO CR NEAR GREENSBORO, NC — River gauge, 1929–2025YADKIN RIVER AT YADKIN COLLEGE, NC — River gauge, 1963–2025LITTLE SUGAR CREEK NEAR CHARLOTTE, NC SITE 55 — River gauge, 1925–1977CULLASAJA RIVER AT CULLASAJA, NC — River gauge, 1908–1970FRENCH BROAD RIVER AT ROSMAN, NC — River gauge, 1908–2025PIGEON RIVER NEAR CANTON, NC — River gauge, 1933–2025HOOSIC RIVER NEAR EAGLE BRIDGE NY — River gauge, 1911–2024BEAVER KILL AT COOKS FALLS NY — River gauge, 1915–2025MOHAWK RIVER NEAR LITTLE FALLS NY — River gauge, 1928–2025UNADILLA RIVER AT ROCKDALE NY — River gauge, 1930–2025LITTLE TONAWANDA CREEK AT LINDEN NY — River gauge, 1913–1991GENESEE RIVER AT ROCHESTER NY — River gauge, 1906–2004MIDDLE BRANCH MOOSE RIVER AT OLD FORGE NY — River gauge, 1912–1972GRASS RIVER AT PYRITES NY — River gauge, 1925–1976W BR AUSABLE R NR LAKE PLACID NY — River gauge, 1920–2022EAST BRANCH AUSABLE RIVER AT AU SABLE FORKS NY — River gauge, 1925–2025North Canadian River near El Reno, OK — River gauge, 1949–2025Stillwater Creek at Uhrichsville OH — River gauge, 1923–1990Muskingum River at McConnelsville OH — River gauge, 1922–2025Big Walnut Creek at Rees OH — River gauge, 1974–2024Great Miami River at Sidney OH — River gauge, 1926–2024Mad River near Springfield OH — River gauge, 1974–2024Tiffin River at Stryker OH — River gauge, 1922–2024Maumee River at Waterville OH — River gauge, 1930–2024TWENTYMILE CREEK NEAR ADEL,OREG. — River gauge, 1911–1990Cuyahoga River at Old Portage OH — River gauge, 1922–2024SPRAGUE RIVER NEAR CHILOQUIN, OR — River gauge, 1922–2024NF MALHEUR R AB BEULAH RES NR BEULAH OR — River gauge, 1937–1993EAST FORK WALLOWA RIVER NEAR JOSEPH, OR — River gauge, 1925–2025GRANDE RONDE R AT RONDOWA, OREG. — River gauge, 1927–1990BUTTER CREEK NEAR PINE CITY, OREG. — River gauge, 1931–1987LAKE CREEK NEAR SISTERS,OREG. — River gauge, 1918–1990JOHN DAY RIVER AT SERVICE CREEK, OR — River gauge, 1930–2025WHITE RIVER BELOW TYGH VALLEY, OR — River gauge, 1918–2023BULL RUN RIVER NEAR BULL RUN (RIVER ONLY), OR — River gauge, 1908–2024MF WILLAMETTE RIVER BLW N FORK, NR OAKRIDGE, OR. — River gauge, 1924–2024NO SANTIAM R BLW BOULDER CRK, NR DETROIT, OR — River gauge, 1908–2024WILLAMETTE RIVER AT SALEM, OR — River gauge, 1910–2025CLACKAMAS RIVER AT ESTACADA, OR — River gauge, 1909–2024N UMPQUA RIVER BLW LEMOLO LK, NR TOKETEE FALLS, OR — River gauge, 1928–2015SOUTH FORK ROGUE RIVER NEAR PROSPECT, OR — River gauge, 1950–2024CATAWBA RIVER NEAR ROCK HILL, SC — River gauge, 1896–2025WALLENPAUPACK CREEK AT WILSONVILLE PA — River gauge, 1926–2004Lehigh River at Bethlehem, PA — River gauge, 1941–2025Towanda Creek near Monroeton, PA — River gauge, 1915–2024Driftwood Br Sinnemahoning Cr at Sterling Run, PA — River gauge, 1914–2025Swatara Creek at Harper Tavern, PA — River gauge, 1919–2024Lycoming Creek near Trout Run, PA — River gauge, 1914–2025Tuscarora Creek near Port Royal, PA — River gauge, 1912–2025Allegheny River at Kittanning, PA — River gauge, 1924–2023PIGEON RIVER AT NEWPORT, TN — River gauge, 1904–2025Youghiogheny River at Sutersville, PA — River gauge, 1921–2024CANEY FORK NEAR ROCK ISLAND, TN — River gauge, 1912–1995POWELL RIVER NEAR ARTHUR, TN — River gauge, 1920–2025TENNESSEE RIVER AT CHATTANOOGA, TN — River gauge, 1954–2007BUFFALO RIVER BELOW LOBELVILLE, TN — River gauge, 1928–2025SPEARFISH CREEK AT SPEARFISH, SD — River gauge, 1947–2024CHEYENNE RIVER AT EDGEMONT, SD — River gauge, 1947–2024MOOSE RIVER AT ST. JOHNSBURY, VT — River gauge, 1929–1982OTTER CREEK AT CENTER RUTLAND, VT — River gauge, 1929–2025UINTA RIVER NEAR NEOLA, UTAH — River gauge, 1930–1982LAMOILLE RIVER AT JOHNSON, VT — River gauge, 1929–2025COLORADO RIVER PLUS GREEN RIVER (TEMP) — River gauge, 1928–1982SAN JUAN RIVER NEAR BLUFF, UT — River gauge, 1915–2025BEAR RIVER NEAR COLLINSTON, UT — River gauge, 1903–2022AMERICAN FK AB UPPER POWERPLANT NR AMERICAN FK, UT — River gauge, 1927–2025WEBER RIVER AT GATEWAY, UT — River gauge, 1921–2025SEVIER RIVER NEAR SIGURD, UT — River gauge, 1915–2002SOUTH RIVER AT HARRISTON, VA — River gauge, 1926–2024N F SHENANDOAH RIVER NEAR STRASBURG, VA — River gauge, 1926–2025POTTS CREEK NEAR COVINGTON, VA — River gauge, 1929–2025WILLIS RIVER AT LAKESIDE VILLAGE, VA — River gauge, 1927–1986BIG REED ISLAND CREEK NEAR ALLISONIA, VA — River gauge, 1909–1994ROANOKE RIVER AT ROANOKE, VA — River gauge, 1900–2025NEW RIVER AT EGGLESTON, VA — River gauge, 1915–1975N F HOLSTON RIVER NEAR SALTVILLE, VA — River gauge, 1908–2025Sabine Rv nr Ruliff, TX — River gauge, 1961–2025W Fk Trinity Rv at Ft Worth, TX — River gauge, 1921–2025W Fk San Jacinto Rv nr Conroe, TX — River gauge, 1973–2025Brazos Rv nr Palo Pinto, TX — River gauge, 1941–2025Little Rv nr Little River, TX — River gauge, 1963–2025Colorado Rv at Ballinger, TX — River gauge, 1908–1978Pecan Bayou at Brownwood, TX — River gauge, 1924–1982San Antonio Rv at Goliad, TX — River gauge, 1925–2025Colorado Rv at Columbus, TX — River gauge, 1917–2025Frio Rv nr Derby, TX — River gauge, 1916–2025POTOMAC RIVER AT SHEPHERDSTOWN, WV — River gauge, 1929–2025BUFFALO CREEK AT BARRACKVILLE, WV — River gauge, 1908–2025HUGHES RIVER AT CISCO, WV — River gauge, 1929–1993GREENBRIER RIVER AT BUCKEYE, WV — River gauge, 1930–2025ELK RIVER AT QUEEN SHOALS, WV — River gauge, 1961–2025TONGUE RIVER NEAR DAYTON, WY — River gauge, 1919–2020LA PRELE CREEK NEAR DOUGLAS, WY — River gauge, 1920–1970LITTLE LARAMIE RIVER AT TWO RIVERS, WY — River gauge, 1911–1970SNAKE RIVER NEAR MORAN, WY — River gauge, 1904–2025FOX RIVER AT BERLIN, WI — River gauge, 1898–2025WAUPACA RIVER NEAR WAUPACA, WI — River gauge, 1917–2019MISSISSIPPI RIVER AT PRESCOTT, WI — River gauge, 1929–2023RED CEDAR RIVER AT MENOMONIE, WI — River gauge, 1914–2025WISCONSIN RIVER AT MERRILL, WI — River gauge, 1913–2025ELWHA RIVER AT MCDONALD BR NEAR PORT ANGELES, WA — River gauge, 1898–2024SUGAR RIVER NEAR BRODHEAD, WI — River gauge, 1915–2024NF SNOQUALMIE RIVER NEAR SNOQUALMIE FALLS, WA — River gauge, 1930–2025NF STILLAGUAMISH RIVER NEAR ARLINGTON, WA — River gauge, 1929–2024NISQUALLY RIVER AT LA GRANDE, WA — River gauge, 1907–2024PUYALLUP RIVER AT PUYALLUP, WA — River gauge, 1915–2025COLVILLE RIVER AT KETTLE FALLS, WA — River gauge, 1923–2025STEHEKIN RIVER AT STEHEKIN, WA — River gauge, 1911–2024KACHESS RIVER NEAR EASTON, WA — River gauge, 1905–1977TIETON RIVER AT CANAL HEADWORKS NEAR NACHES, WA — River gauge, 1908–1977WHITE SALMON RIVER NEAR UNDERWOOD, WA — River gauge, 1916–2025MILL CREEK NEAR WALLA WALLA, WA — River gauge, 1914–2025COWLITZ RIVER AT CASTLE ROCK, WA — River gauge, 1927–2024Milford Lake Nr Junction City, KS — Monitored reservoir, 2002–2026Lake Maloya Nr Raton NM — Monitored reservoir, 1987–2026Lake Lawtonka Near Lawton, OK — Monitored reservoir, 1994–2026B. A. Steinhagen Lk At Town Bluff, TX — Monitored reservoir, 1951–2002Lk Nasworthy Nr San Angelo, TX — Monitored reservoir, 1930–2001Jemez Canyon Res Nr Bernalillo N M — Monitored reservoir, 1965–2015Ridgway Reservoir Near Ridgway, CO — Monitored reservoir, 1990–2026Lake Mohave At Davis Dam, Az-NV — Monitored reservoir, 1950–2026Echo Reservoir At Echo, UT — Monitored reservoir, 1930–1990Lahontan Res Nr Fallon, NV — Monitored reservoir, 1960–2026Lk Mcclure A Exchequer CA — Monitored reservoir, 1930–2023Lk Pillsbury Nr Potter Valley CA — Monitored reservoir, 1928–2025Lake Lowell Nr Caldwell ID — Monitored reservoir, 1917–1965
400 of 2,630 locations drawn, sampled evenly across the network so the map stays a reasonable size and still shows where coverage is dense and where it is thin. Every location is held in full and reachable through the data.

What is measured

MeasurementLocationsValues held
Mean river flow1,750148,859
Reservoir stored volume9254,260
Facility water withdrawal8347,414
Facility water consumption8136,943
Facility reclaimed water use69611

What kind of place is monitored

KindLocations
River gauges1,750
Sampling and rain gauges838
Monitored reservoirs92

Elsewhere

All networks · the underlying series are published through the dataset catalogue and the static API.

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