{
    "type":"Feature",
    "properties":{
        "fid":9833,
        "id":"528795",
        "uri":"https://geoconnex.us/ref/mainstems/528795",
        "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/428218",
        "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/428218', 'https://geoconnex.us/ref/mainstems/314849', 'https://geoconnex.us/ref/mainstems/312091']",
        "name_at_outlet":"West Fork Massac Creek",
        "name_at_outlet_gnis_id":506438,
        "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/1839579",
        "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/1839891",
        "head_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/051402060303",
        "outlet_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/051402060303",
        "lengthkm":13.6,
        "outlet_drainagearea_sqkm":63.6,
        "head_rf1id":null,
        "outlet_rf1id":null,
        "head_nhdpv1_comid":1839579,
        "outlet_nhdpv1_comid":1839891,
        "head_2020huc12":"051402060303",
        "outlet_2020huc12":"051402060303",
        "superseded":false,
        "new_mainstemid":"",
        "datasets":[
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Sodium at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Sodium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Sodium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Color at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Color",
                "variableUnit":"PCU",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Color&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Calcium at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Calcium",
                "variableUnit":"mg/L",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Calcium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Silica at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Silica",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Silica&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Fluoride at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Fluoride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Fluoride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Depth at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Depth",
                "variableUnit":"ft",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Depth&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Temperature, water at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Temperature, water",
                "variableUnit":"deg C",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Temperature, water&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Magnesium at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Magnesium",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Magnesium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Carbon dioxide at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Carbon dioxide",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Carbon dioxide&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Potassium at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Potassium",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Potassium&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Sulfate at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Sulfate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Sulfate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Manganese at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Manganese",
                "variableUnit":"ug/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Manganese&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Hardness, non-carbonate at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Hardness, non-carbonate",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Hardness, non-carbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Nitrate at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Nitrate",
                "variableUnit":"mg/l as N",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Nitrate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Total dissolved solids at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Total dissolved solids",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Total dissolved solids&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Bicarbonate at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Bicarbonate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Bicarbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Specific conductance at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Specific conductance",
                "variableUnit":"umho/cm",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Specific conductance&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Sodium, percent total cations at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Sodium, percent total cations",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Sodium, percent total cations&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"pH at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"pH",
                "variableUnit":"None",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=pH&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Hardness, Ca, Mg at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Hardness, Ca, Mg",
                "variableUnit":"mg/l CaCO3",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Hardness, Ca, Mg&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Carbonate at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Carbonate",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Carbonate&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Iron at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Iron",
                "variableUnit":"%",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Iron&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            },
            {
                "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-370444088473801",
                "siteName":"USGS-370444088473801",
                "datasetDescription":"Chloride at USGS-370444088473801",
                "type":"Well",
                "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-KY/USGS-370444088473801/",
                "variableMeasured":"Chloride",
                "variableUnit":"mg/l",
                "measurementTechnique":"observation",
                "temporalCoverage":"1965-01-01T00:00:00Z/1965-12-31T00:00:00Z",
                "distributionName":"Water Quality Portal",
                "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-370444088473801&CharacteristicName=Chloride&mimeType=csv",
                "distributionFormat":"text/comma-separated-values",
                "wkt":"POINT (-88.7939448 37.07894319)"
            }
        ]
    },
    "id":"528795",
    "geometry":{
        "type":"LineString",
        "coordinates":[
            [
                -88.8280341058944,
                37.027581875859184
            ],
            [
                -88.82307930590207,
                37.05207180915447
            ],
            [
                -88.80336870593273,
                37.05826507581155
            ],
            [
                -88.79965350593854,
                37.06062047580787
            ],
            [
                -88.79834030594043,
                37.05993307580892
            ],
            [
                -88.79445117261321,
                37.064600075801685
            ],
            [
                -88.79019370595319,
                37.066176609132654
            ],
            [
                -88.78798750595655,
                37.07233240912305
            ],
            [
                -88.78387097262964,
                37.075076275785506
            ],
            [
                -88.77720410597328,
                37.08381500910528
            ],
            [
                -88.77377310597859,
                37.0858266757687
            ],
            [
                -88.76965870598508,
                37.08591467576847
            ],
            [
                -88.76408157266042,
                37.08998427576233
            ],
            [
                -88.75814050600286,
                37.0885138090979
            ],
            [
                -88.75442517267538,
                37.08915120909696
            ],
            [
                -88.74757450601936,
                37.09396867575614
            ],
            [
                -88.74631550602123,
                37.09298567575767
            ],
            [
                -88.7418599726949,
                37.09420347575572
            ],
            [
                -88.73168590604394,
                37.093160475757344
            ]
        ]
    },
    "prev":"528793",
    "next":"52881",
    "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/528795?f=json"
        },
        {
            "rel":"alternate",
            "type":"application/ld+json",
            "title":"This document as RDF (JSON-LD)",
            "href":"https://geoconnex.us/ref/mainstems/528795?f=jsonld"
        },
        {
            "rel":"alternate",
            "type":"text/html",
            "title":"This document as HTML",
            "href":"https://geoconnex.us/ref/mainstems/528795?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/528793?f=json"
        },
        {
            "rel":"next",
            "type":"application/json",
            "href":"https://reference.geoconnex.us/collections/mainstems/items/52881?f=json"
        }
    ]
}