{
    "type":"Feature",
    "properties":{
        "fid":17756,
        "id":"553940",
        "uri":"https://geoconnex.us/ref/mainstems/553940",
        "featuretype":"['https://www.opengis.net/def/schema/hy_features/hyf/HY_FlowPath', 'https://www.opengis.net/def/schema/hy_features/hyf/HY_WaterBody']",
        "downstream_mainstem_id":"https://geoconnex.us/ref/mainstems/538384",
        "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/538384', 'https://geoconnex.us/ref/mainstems/354423', 'https://geoconnex.us/ref/mainstems/314333', 'https://geoconnex.us/ref/mainstems/313255', 'https://geoconnex.us/ref/mainstems/312532', 'https://geoconnex.us/ref/mainstems/312091']",
        "name_at_outlet":"Oregon Slough",
        "name_at_outlet_gnis_id":1592467,
        "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/15953820",
        "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/15953722",
        "head_nhdpv2huc12":"",
        "outlet_nhdpv2huc12":"",
        "lengthkm":17.8,
        "outlet_drainagearea_sqkm":71.8,
        "head_rf1id":22317,
        "outlet_rf1id":22317,
        "head_nhdpv1_comid":15953820,
        "outlet_nhdpv1_comid":15953722,
        "head_2020huc12":"",
        "outlet_2020huc12":"",
        "superseded":false,
        "new_mainstemid":"",
        "datasets":[
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Alkalinity at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Alkalinity",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Alkalinity&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Fluoride at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Fluoride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Fluoride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"pH at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Total dissolved solids at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Inorganic nitrogen (nitrate and nitrite) at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Inorganic nitrogen (nitrate and nitrite)",
                "variableUnit":"mg/l as N",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Inorganic nitrogen (nitrate and nitrite)&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Magnesium at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Magnesium",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Magnesium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Potassium at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Potassium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Chloride at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Silica at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Silica",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Silica&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Sodium, percent total cations at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Sodium, percent total cations",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Sodium, percent total cations&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Calcium at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Calcium",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Calcium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Hardness, Ca, Mg at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Hardness, Ca, Mg",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Hardness, Ca, Mg&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Carbon dioxide at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Carbon dioxide",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Carbon dioxide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Specific conductance at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Temperature, water at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Temperature, water",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Temperature, water&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Sodium at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Sodium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Sodium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Sulfate at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Sulfate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Sulfate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Flow rate, instantaneous at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Flow rate, instantaneous",
                "variableUnit":"gal/min",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Flow rate, instantaneous&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-421829108514001",
                "siteName":"USGS-421829108514001",
                "datasetDescription":"Phosphorus at USGS-421829108514001",
                "type":"Spring",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-WY/USGS-421829108514001/",
                "variableMeasured":"Phosphorus",
                "variableUnit":"ppb",
                "measurementTechnique":"observation",
                "temporalCoverage":"1990-01-01T00:00:00Z/1990-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-421829108514001&CharacteristicName=Phosphorus&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-108.8617816 42.3080114)"
            }
        ]
    },
    "id":"553940",
    "geometry":{
        "type":"LineString",
        "coordinates":[
            [
                -108.86141327479862,
                42.30809140099603
            ],
            [
                -108.86258227479675,
                42.31495180098548
            ],
            [
                -108.85755880813792,
                42.31915846764565
            ],
            [
                -108.8617172081315,
                42.324304200970936
            ],
            [
                -108.86202440813099,
                42.327414267632776
            ],
            [
                -108.8555214081411,
                42.3294940009628
            ],
            [
                -108.8555192748077,
                42.33489060095448
            ],
            [
                -108.84981567481661,
                42.33918826761444
            ],
            [
                -108.84047527483108,
                42.34138080094445
            ],
            [
                -108.81957987486356,
                42.338696467615186
            ],
            [
                -108.80869387488042,
                42.34406386760702
            ],
            [
                -108.79615267489993,
                42.34094566761181
            ],
            [
                -108.78758407491325,
                42.34091640094521
            ],
            [
                -108.77026980827344,
                42.336442267618715
            ],
            [
                -108.76018460828914,
                42.3401824009462
            ],
            [
                -108.75067900830379,
                42.33990946761343
            ],
            [
                -108.73802340832346,
                42.34701066760232
            ],
            [
                -108.73297020833132,
                42.34825006760042
            ],
            [
                -108.72804667500566,
                42.353810867591704
            ],
            [
                -108.72863567500474,
                42.35591406758851
            ],
            [
                -108.7244826083445,
                42.36181700091267
            ],
            [
                -108.71748947502203,
                42.3660298009062
            ]
        ]
    },
    "prev":"553936",
    "next":"553959",
    "links":[
        {
            "type":"application/json",
            "rel":"root",
            "title":"The landing page of this server as JSON",
            "href":"https://reference.geoconnex.us?f=json"
        },
        {
            "type":"text/html",
            "rel":"root",
            "title":"The landing page of this server as HTML",
            "href":"https://reference.geoconnex.us?f=html"
        },
        {
            "rel":"self",
            "type":"application/geo+json",
            "title":"This document as JSON",
            "href":"https://geoconnex.us/ref/mainstems/553940?f=json"
        },
        {
            "rel":"alternate",
            "type":"application/ld+json",
            "title":"This document as RDF (JSON-LD)",
            "href":"https://geoconnex.us/ref/mainstems/553940?f=jsonld"
        },
        {
            "rel":"alternate",
            "type":"text/html",
            "title":"This document as HTML",
            "href":"https://geoconnex.us/ref/mainstems/553940?f=html"
        },
        {
            "rel":"collection",
            "type":"application/json",
            "title":"Reference Mainstems",
            "href":"https://reference.geoconnex.us/collections/mainstems"
        },
        {
            "rel":"prev",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/553936?f=json"
        },
        {
            "rel":"next",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/553959?f=json"
        }
    ]
}