{ "type":"Feature", "properties":{ "fid":31645, "id":"2329885", "uri":"https://geoconnex.us/ref/mainstems/2329885", "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/2329183", "encompassing_mainstem_basins":"['https://geoconnex.us/ref/mainstems/2329183', 'https://geoconnex.us/ref/mainstems/2328736', 'https://geoconnex.us/ref/mainstems/2328486']", "name_at_outlet":"North Fork Silver Creek", "name_at_outlet_gnis_id":1146997, "head_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/23945499", "outlet_nhdpv2_comid":"https://geoconnex.us/nhdplusv2/comid/23945493", "head_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/171003110902", "outlet_nhdpv2huc12":"https://geoconnex.us/nhdplusv2/huc12/171003110902", "lengthkm":22.0, "outlet_drainagearea_sqkm":61.7, "head_rf1id":54154, "outlet_rf1id":54154, "head_nhdpv1_comid":23945499, "outlet_nhdpv1_comid":23945493, "head_2020huc12":"171003110902", "outlet_2020huc12":"171003110902", "superseded":false, "new_mainstemid":"", "datasets":[ { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"Specific conductance at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"Specific conductance", "variableUnit":"umho/cm", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=Specific conductance&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"Ammonia and ammonium at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"Ammonia and ammonium", "variableUnit":"Unknown", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=Ammonia and ammonium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"Alkalinity at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"Alkalinity", "variableUnit":"mg/l CaCO3", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=Alkalinity&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"Inorganic nitrogen (nitrate and nitrite) at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"Inorganic nitrogen (nitrate and nitrite)", "variableUnit":"mg/l as N", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=Inorganic nitrogen (nitrate and nitrite)&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"Phosphorus at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"Phosphorus", "variableUnit":"ppb", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=Phosphorus&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"Orthophosphate at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"Orthophosphate", "variableUnit":"mg/l asPO4", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=Orthophosphate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423236123432500", "siteName":"USGS-423236123432500", "datasetDescription":"pH at USGS-423236123432500", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423236123432500/", "variableMeasured":"pH", "variableUnit":"None", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423236123432500&CharacteristicName=pH&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7247969 42.5431676)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"pH at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"pH", "variableUnit":"None", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=pH&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"Orthophosphate at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"Orthophosphate", "variableUnit":"mg/l asPO4", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=Orthophosphate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"Phosphorus at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"Phosphorus", "variableUnit":"ppb", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=Phosphorus&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"Alkalinity at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"Alkalinity", "variableUnit":"mg/l CaCO3", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=Alkalinity&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"Ammonia and ammonium at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"Ammonia and ammonium", "variableUnit":"Unknown", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=Ammonia and ammonium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"Specific conductance at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"Specific conductance", "variableUnit":"umho/cm", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=Specific conductance&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423158123465900", "siteName":"USGS-423158123465900", "datasetDescription":"Inorganic nitrogen (nitrate and nitrite) at USGS-423158123465900", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423158123465900/", "variableMeasured":"Inorganic nitrogen (nitrate and nitrite)", "variableUnit":"mg/l as N", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423158123465900&CharacteristicName=Inorganic nitrogen (nitrate and nitrite)&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.7842435 42.5326113)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"Specific conductance at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"Specific conductance", "variableUnit":"umho/cm", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=Specific conductance&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"Inorganic nitrogen (nitrate and nitrite) at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"Inorganic nitrogen (nitrate and nitrite)", "variableUnit":"mg/l as N", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=Inorganic nitrogen (nitrate and nitrite)&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"Orthophosphate at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"Orthophosphate", "variableUnit":"mg/l asPO4", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=Orthophosphate&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"Alkalinity at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"Alkalinity", "variableUnit":"mg/l CaCO3", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=Alkalinity&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"Phosphorus at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"Phosphorus", "variableUnit":"ppb", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=Phosphorus&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"pH at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"pH", "variableUnit":"None", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=pH&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" }, { "monitoringLocation":"https://geoconnex.us/iow/wqp/USGS-423247123443100", "siteName":"USGS-423247123443100", "datasetDescription":"Ammonia and ammonium at USGS-423247123443100", "type":"Stream", "url":"https://www.waterqualitydata.us/provider/NWIS/USGS-OR/USGS-423247123443100/", "variableMeasured":"Ammonia and ammonium", "variableUnit":"Unknown", "measurementTechnique":"observation", "temporalCoverage":"2002-01-01T00:00:00Z/2002-12-31T00:00:00Z", "distributionName":"Water Quality Portal", "distributionURL":"https://www.waterqualitydata.us/data/Result/search?siteid=USGS-423247123443100&CharacteristicName=Ammonia and ammonium&mimeType=csv", "distributionFormat":"text/comma-separated-values", "wkt":"POINT (-123.743131 42.54622297)" } ] }, "id":"2329885", "geometry":{ "type":"LineString", "coordinates":[ [ -123.71641058507402, 42.555872467278206 ], [ -123.72339978506318, 42.550470400619794 ], [ -123.72534478506016, 42.54296326729823 ], [ -123.72991478505298, 42.53566920064289 ], [ -123.73562998504413, 42.53207606731514 ], [ -123.74219131836736, 42.53349100064619 ], [ -123.7530707183504, 42.53159086731578 ], [ -123.75807591834263, 42.534970800643855 ], [ -123.76308911833492, 42.533948800645476 ], [ -123.7665533183295, 42.53477266731084 ], [ -123.78761798496352, 42.531350467316194 ], [ -123.79482118495235, 42.52789840065488 ], [ -123.80419758493775, 42.52784826732162 ], [ -123.80673071826722, 42.52592920065803 ], [ -123.80611258493475, 42.52451020066012 ], [ -123.81300978492412, 42.52142806733163 ], [ -123.81570278491989, 42.51676306733878 ], [ -123.82327211824143, 42.514328867342705 ], [ -123.82275298490896, 42.51250486734546 ], [ -123.82559111823794, 42.51257386734537 ], [ -123.82652211823648, 42.510219867348916 ], [ -123.82485098490571, 42.50875586735129 ], [ -123.82828411823375, 42.50831286735193 ], [ -123.83093918489628, 42.506096800688795 ], [ -123.83261018489368, 42.50143080069607 ], [ -123.83999538488212, 42.5016826673622 ], [ -123.8442605182089, 42.4927186007095 ], [ -123.85152371819767, 42.49079946737919 ], [ -123.85686491818934, 42.48457340072212 ], [ -123.8739393181628, 42.47289620074023 ], [ -123.8762823848259, 42.46834920074736 ], [ -123.88073751815233, 42.465118067418935 ], [ -123.88234751814981, 42.45812606742991 ], [ -123.88457551814633, 42.45665700076553 ] ] }, "prev":"2329846", "next":"2329887", "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/2329885?f=json" }, { "rel":"alternate", "type":"application/ld+json", "title":"This document as RDF (JSON-LD)", "href":"https://geoconnex.us/ref/mainstems/2329885?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://geoconnex.us/ref/mainstems/2329885?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/2329846?f=json" }, { "rel":"next", "type":"application/json", "href":"https://reference.geoconnex.us/collections/mainstems/items/2329887?f=json" } ] }