https://geoconnex.us/sitemap/usbr/rise.xml 2026-10-14T14:26:38Z usbr:rise USBR RISE Locations Contains location records from the U.S. Bureau of Reclamation's Reservoir Information System (RISE) API. 4 True internetofwater@lincolninst.edu True https://data.usbr.gov/rise-api https://geoconnex.us/sitemap/ca_gage_assessment/gages.xml 2026-10-14T14:26:38Z ca_gage_assessment:gages California Streamgage Network Assessment Contains a catalog assessing the California streamgage network's coverage and conditions, maintained as part of the CA-Gages project. 2 True kyle.onda@duke.edu True https://github.com/internetofwater/CA-Gages https://geoconnex.us/sitemap/utah/water_systems.xml 2026-10-14T14:26:38Z utah:water_systems Utah Water Systems Contains water system records spanning Utah's Division of Water Rights (DWRi), Division of Drinking Water (DDW), and other state water agencies. 4 True aabdallah@utah.gov True https://waterrights.utah.gov/ https://geoconnex.us/sitemap/wwdh/noaa_rfc.xml 2026-10-14T14:26:38Z wwdh:noaa_rfc NOAA River Forecast Center Locations Contains river and water supply forecast data from NOAA's River Forecast Centers, accessed through a proxied version of the API hosted within the USBR / Internet of Water Western Water Datahub rather than queried directly from NOAA. 5 True cloftus@lincolninst.edu True https://api.wwdh.internetofwater.app/ https://geoconnex.us/sitemap/wwdh/awdb_forecasts.xml 2026-10-14T14:26:38Z wwdh:awdb_forecasts US Department of Agriculture AWDB Forecast Locations Contains seasonal water supply forecast data from the Air and Water Database (AWDB), accessed through a proxied version of the API hosted within the USBR / Internet of Water Western Water Datahub rather than queried directly from the original AWDB service. 5 True cloftus@lincolninst.edu True https://api.wwdh.internetofwater.app/ https://geoconnex.us/sitemap/wwdh/usace/access_to_water.xml 2026-10-14T14:26:38Z wwdh:usace:access_to_water US Army Corps of Engineers Access2Water API Locations Contains U.S. Army Corps of Engineers reservoir and water control data from the Access2Water API, accessed through a proxied version of the API hosted within the USBR / Internet of Water Western Water Datahub rather than queried directly from USACE. 5 True cloftus@lincolninst.edu True https://api.wwdh.internetofwater.app/ https://geoconnex.us/sitemap/wwdh/usbr/rise.xml 2026-10-14T14:26:38Z wwdh:usbr:rise US Bureau of Reclamation RISE API Locations Contains U.S. Bureau of Reclamation location and reservoir data from the RISE API, accessed through a proxied version of the API hosted within the USBR / Internet of Water Western Water Datahub rather than queried directly from the original RISE API. 5 True cloftus@lincolninst.edu True https://api.wwdh.internetofwater.app/ https://geoconnex.us/sitemap/wwdh/snotel.xml 2026-10-14T14:26:38Z wwdh:snotel US Department of Agriculture SNOTEL Locations Contains snowpack telemetry (SNOTEL) station data, accessed through a proxied version of the API hosted within the USBR / Internet of Water Western Water Datahub rather than queried directly from the original SNOTEL service. 5 True cloftus@lincolninst.edu True https://api.wwdh.internetofwater.app/ https://geoconnex.us/sitemap/iow/state_gages/cdss.xml 2026-10-14T14:26:38Z iow:state_gages:cdss Colorado State Gages Contains streamgage locations for Colorado, served from the Internet of Water features API and sourced from Colorado's Decision Support Systems (CDSS). 4 True ewiggans@lincolninst.edu True https://features.internetofwater.dev/collections/co/gages https://geoconnex.us/sitemap/iow/state_gages/wyseo.xml 2026-10-14T14:26:38Z iow:state_gages:wyseo Wyoming State Gages Contains streamgage locations for Wyoming, served from the Internet of Water features API and sourced from the Wyoming State Engineer's Office (WYSEO). 4 True ewiggans@lincolninst.edu True https://features.internetofwater.dev/collections/wy/gages https://geoconnex.us/sitemap/iow/state_gages/mtdnrc.xml 2026-10-14T14:26:38Z iow:state_gages:mtdnrc Montana State Gages Contains streamgage locations for Montana, served from the Internet of Water features API and sourced from the Montana Department of Natural Resources and Conservation (DNRC). 4 True ewiggans@lincolninst.edu True https://features.internetofwater.dev/collections/mt/gages https://geoconnex.us/sitemap/iow/state_gages/nednr.xml 2026-10-14T14:26:38Z iow:state_gages:nednr Nebraska State Gages Contains streamgage locations for Nebraska, served from the Internet of Water features API and sourced from the Nebraska Department of Natural Resources. 4 True ewiggans@lincolninst.edu True https://features.internetofwater.dev/collections/ne/gages https://geoconnex.us/sitemap/iow/state_gages/ndwr.xml 2026-10-14T14:26:38Z iow:state_gages:ndwr Nevada State Gages Contains streamgage locations for Nevada, served from the Internet of Water features API and sourced from the Nevada Division of Water Resources (NDWR). 4 True ewiggans@lincolninst.edu True https://features.internetofwater.dev/collections/nv/gages https://geoconnex.us/sitemap/bulk/geoconnex/ontology.xml 2026-10-14T14:26:38Z geoconnex:ontology Geoconnex Ontology Contains the OWL-based RDF ontology that defines the classes and properties used throughout the Geoconnex knowledge graph. ssteward@lincolninst.edu True False https://github.com/internetofwater/ontologies.geoconnex.us/ https://github.com/internetofwater/ontologies.geoconnex.us/ ghcr.io/internetofwater/geoconnex_ontology_loader:latest https://geoconnex.us/sitemap/bulk/usgs/gnis.xml 2026-10-14T14:26:38Z usgs:gnis USGS Geographic Names (GNIS) Contains named geographic feature records from the USGS Geographic Names Information System. cloftus@lincolninst.edu True False https://github.com/internetofwater/gnis_bulk_rdf https://www.usgs.gov/tools/geographic-names-information-system-gnis internetofwater/gnis_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/usgs/sciencebase.xml 2026-10-14T14:26:38Z usgs:sciencebase USGS ScienceBase Catalog Contains all scientific studies contained within the USGS ScienceBase data catalog. Each feature's geospatial coordinates represents the spatial extent of the scientific study. cloftus@lincolninst.edu True False https://github.com/internetofwater/sciencebase_bulk_rdf https://www.sciencebase.gov/catalog/ ghcr.io/internetofwater/sciencebase_bulk_rdf https://geoconnex.us/sitemap/bulk/usgs/monitoring_locations.xml 2026-10-14T14:26:38Z usgs:monitoring_locations USGS Monitoring Locations Contains the list of all USGS water monitoring locations, derived from the USGS OGC API Features endpoint. cloftus@lincolninst.edu True True https://github.com/internetofwater/usgs_monitoring_locations_bulk_exports https://api.waterdata.usgs.gov/ogcapi/v0/collections/monitoring-locations ghcr.io/internetofwater/usgs_monitoring_locations_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/usgs/national_geologic_map.xml 2026-10-14T14:26:38Z usgs:national_geologic_map National Geologic Map Database Contains geospatial data describing mapped geologic units and features from within the USGS National Geologic Map Database. cloftus@lincolninst.edu False False https://github.com/internetofwater/national_geologic_map_bulk_rdf https://ngmdb.usgs.gov/Prodesc/proddesc_118545.htm ghcr.io/internetofwater/usgs_national_geologic_map_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/usgs/nhdplusv2/huc12pp.xml 2026-10-14T14:26:38Z usgs:nhdplusv2:huc12pp HUC12 Pour Points Contains outlet pour points for twelve-digit hydrologic unit catchments, derived from NHDPlus V2.1 flow direction rasters, linking each HUC12 to its downstream destination. cloftus@lincolninst.edu False False https://github.com/internetofwater/geoconnex_bulk_runners/tree/main/nhdplusv2:huc12 https://doi.org/10.5066/P9SOT2VG ghcr.io/internetofwater/nhdplusv2_huc12_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/ref/gages.xml 2026-10-14T14:26:38Z ref:gages Reference Stream Gages Contains community-contributed stream gage locations served from the Geoconnex reference feature server. cloftus@lincolninst.edu True True https://github.com/internetofwater/geoconnex_bulk_runners/tree/main/ref%3Agages https://reference.geoconnex.us/collections/gages ghcr.io/internetofwater/ref_gages_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/ref/hu12.xml 2026-10-14T14:26:38Z ref:hu12 HUC12 Hydrologic Units Contains twelve-digit hydrologic unit boundaries derived from USGS NHDPlus High Resolution, served from the Geoconnex reference feature server. cloftus@lincolninst.edu True True https://github.com/internetofwater/geoconnex_bulk_runners/tree/main/ref%3Ahu12 https://reference.geoconnex.us/collections/hu12 ghcr.io/internetofwater/ref_hu12_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/ref/mainstems.xml 2026-10-14T14:26:38Z ref:mainstems Reference Mainstems Contains the Geoconnex v3 reference mainstem river network. Reference mainstems give every river in the United States a stable identifier that persists across the datasets used to represent it. A monitoring site, model output, a water-related permit, or a photograph of a river can be referenced to a mainstem once, and that reference will remain valid even when the underlying hydrography is replaced. A mainstem identifier is for a river, not a particular set of flowlines. The mainstem registry currently holds about 850,000 mainstem identifiers covering the conterminous United States and the parts of Canada and Mexico needed to cover transboundary networks. Each identifier is defined by a headwater location, an outlet location, and a network dataset in which the path between them can be traced. cloftus@lincolninst.edu False False https://github.com/internetofwater/mainstems_v3_bulk_rdf https://doi.org/10.5066/P13LNDDQ ghcr.io/internetofwater/mainstems_v3_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/epa/wqp.xml 2026-10-14T14:26:38Z epa:wqp EPA Water Quality Portal Contains water quality monitoring data submitted by multiple organizations to the EPA/USGS Water Quality Portal. cloftus@lincolninst.edu False True https://github.com/internetofwater/wqp_bulk_exports https://www.waterqualitydata.us/ ghcr.io/internetofwater/wqp_bulk_rdf:latest https://geoconnex.us/sitemap/bulk/epa/hmw.xml 2026-10-14T14:26:38Z epa:hmw EPA How's My Waterway Contains assessment and water quality condition data for waterbodies across the United States. Contains no geometry; links via RDF associations to the proper HUC cloftus@lincolninst.edu True True https://github.com/internetofwater/epa_hmw_bulk_rdf https://mywaterway.epa.gov/ ghcr.io/internetofwater/epa_hows_my_waterway_bulk_rdf:latest https://geoconnex.us/sitemap/ref/hu10.xml 2026-10-14T14:26:38Z ref:hu10 HUC10 Hydrologic Regions Contains ten-digit hydrologic region boundaries derived from USGS NHDPlus High Resolution, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/hu10 https://geoconnex.us/sitemap/ref/counties.xml 2026-10-14T14:26:38Z ref:counties U.S. Counties Contains county boundaries from the United States Census Bureau Cartographic Boundary files, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/counties https://geoconnex.us/sitemap/ref/pws.xml 2026-10-14T14:26:38Z ref:pws EPA Public Water Systems Contains EPA Safe Drinking Water Act public water system service area data, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/pws https://geoconnex.us/sitemap/ref/sec_hydrg_reg.xml 2026-10-14T14:26:38Z ref:sec_hydrg_reg Secondary Hydrogeologic Regions Contains secondary hydrogeologic region boundaries for the conterminous United States from the 2018 USGS data release, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/sec_hydrg_reg https://geoconnex.us/sitemap/ref/places.xml 2026-10-14T14:26:38Z ref:places U.S. Places Contains legally incorporated and Census-designated place boundaries for the United States, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/places https://geoconnex.us/sitemap/ref/hu08.xml 2026-10-14T14:26:38Z ref:hu08 HUC08 Hydrologic Regions Contains eight-digit hydrologic region boundaries derived from USGS NHDPlus High Resolution, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/hu08 https://geoconnex.us/sitemap/ref/cbsa.xml 2026-10-14T14:26:38Z ref:cbsa Core Based Statistical Areas Contains Core Based Statistical Area boundaries as defined by the Office of Management and Budget, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/cbsa https://geoconnex.us/sitemap/ref/ua10.xml 2026-10-14T14:26:38Z ref:ua10 US Census Bureau Urbanized Areas (2010) Contains urbanized area boundaries as defined by the U.S. Census Bureau based on the 2010 Decennial Census, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/ua10 https://geoconnex.us/sitemap/ref/princi_aq.xml 2026-10-14T14:26:38Z ref:princi_aq USGS Principal Aquifers Contains principal aquifer boundaries for the United States from the 2003 USGS data release, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/princi_aq https://geoconnex.us/sitemap/ref/dams.xml 2026-10-14T14:26:38Z ref:dams Reference Dams Contains community-contributed dam locations for the United States, served from the Geoconnex reference feature server. 5 True internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/dams https://geoconnex.us/sitemap/ref/hu06.xml 2026-10-14T14:26:38Z ref:hu06 HUC06 Hydrologic Regions Contains six-digit hydrologic region boundaries derived from USGS NHDPlus High Resolution, served from the Geoconnex reference feature server. 5 False internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/hu06 https://geoconnex.us/sitemap/ref/hu04.xml 2026-10-14T14:26:38Z ref:hu04 HUC04 Hydrologic Regions Contains four-digit hydrologic region boundaries derived from USGS NHDPlus High Resolution, served from the Geoconnex reference feature server. 5 False internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/hu04 https://geoconnex.us/sitemap/ref/states.xml 2026-10-14T14:26:38Z ref:states U.S. States Contains U.S. state boundaries as described by the Profile web pages from the U.S. Census Center for Enterprise Dissemination Services and Consumer Innovation (CEDSCI), served from the Geoconnex reference feature server. 5 False internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/states https://geoconnex.us/sitemap/ref/hu02.xml 2026-10-14T14:26:38Z ref:hu02 HUC02 Hydrologic Regions Contains two-digit hydrologic region boundaries derived from USGS NHDPlus High Resolution, served from the Geoconnex reference feature server. 5 False internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/hu02 https://geoconnex.us/sitemap/ref/aiannh.xml 2026-10-14T14:26:38Z ref:aiannh American Indian/Alaska Native Areas and Hawaiian Home Lands Contains American Indian/Alaska Native Area and Hawaiian Home Land boundaries as defined by the Bureau of Indian Affairs and delineated by the U.S. Census Boundary and Annexation Survey, served from the Geoconnex reference feature server. 5 False internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/aiannh https://geoconnex.us/sitemap/ref/nat_aq.xml 2026-10-14T14:26:38Z ref:nat_aq USGS National Aquifers Contains national aquifer boundaries for the United States from the USGS National Water Information System National Aquifer code list, served from the Geoconnex reference feature server. 5 False internetofwater@lincolninst.edu True https://reference.geoconnex.us/collections/nat_aq