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They are part of the Yellowtail Unit of the Pick-Sloan Missouri Basin Program and are located approximately 45 miles southeast of Billings, Montana.", "locationStatusId":1, "elevation":3208.524952, "createDate":"2023-10-20T17:50:12+00:00", "updateDate":"2023-10-30T22:33:10+00:00", "horizontalDatum":{ "_id":"WGS84", "definition":"World Geodetic System of 1984" }, "timezone":"MT", "verticalDatum":{ "_id":"NAVD88", "definition":"North American Vertical Datum of 1988" }, "locationTags":[ { "id":10, "tag":"Missouri River Basin", "createDate":"2019-01-29T11:16:01+00:00" }, { "id":484, "tag":"Yellowtail Afterbay Dam", "createDate":"2023-10-20T17:46:22+00:00" }, { "id":485, "tag":"Yellowtail Afterbay", "createDate":"2023-10-20T17:46:28+00:00" } ], "relatedLocationIds":[ 275 ], "projectNames":[ "Pick-Sloan Missouri Basin Program" ], "locationTypeName":"Lake/Reservoir", "timezoneName":"Mountain Standard Time", "timezoneOffset":-7.0, "locationRegionNames":[ "Great Plains" ], "locationUnifiedRegionNames":[ "Missouri Basin" ], "catalogItems":[ { "id":"/rise/api/catalog-record/7984", "attributes":{ "_id":7984, "recordTitle":"Yellowtail Afterbay (Montana) Sedimentation Survey Data", "recordDescription":"Yellowtail Afterbay Sedimentation Survey Data. The primary purpose of this type of survey is to determine the present storage-elevation relationship of the reservoir and possible change in storage due to sedimentation. Yellowtail Afterbay is associated with Yellowtail Afterbay Dam. Reservoir sedimentation surveys typically contain a survey report, area-capacity (ACAP) table, and geospatial data.", "catalogStatusId":1, "metadataFilePath":null, "metadataStandard":{ "_id":"ISO", "definition":"International Standards Organization (ISO) 19115-1:2014 metadata content standard, and ISO 19139:2007 metadata implementation standard", "createDate":"2018-11-20T13:25:52+00:00" }, "createDate":"2023-10-20T17:58:58+00:00", "updateDate":"2025-06-04T16:41:09+00:00", "programNames":[], "generationEffort":"Reservoir Sedimentation Surveys", "generationEffortId":50, "subTheme":{ "_id":25, "subTheme":"Sediment and Sedimentation", "definition":"Relating to the study of sediment accumulation and movement, chemical, physical, biological, and radiological characteristics of sediment, and management of sediment loads.", "createDate":"2019-10-08T15:05:05+00:00" }, "tags":[ "Reservoir Sedimentation", "Reservoir Survey", "Area Capacity" ], "themes":[ "Infrastructure and Assets" ] }, "type":"CatalogRecord", "relationships":{ "location":{ "data":[ { "id":"/rise/api/location/6882", "type":"Location" } ] }, "catalogItems":{ "data":[ { "id":"/rise/api/catalog-item/11275", "type":"CatalogItem" } ] } } }, { "id":"/rise/api/catalog-item/11275", "attributes":{ "_id":11275, "itemTitle":"Yellowtail Afterbay (Montana) Sedimentation Survey Report 2000", "itemDescription":"The Bureau of Reclamation conducted a survey at Yellowtail Afterbay in June 2000. Survey data were used to update reservoir topography and compute the present storage-elevation relationship of the reservoir as an area-capacity (ACAP) table. This document is a survey report that details the methods used to collect data and compute elevation-area-capacity relations for Yellowtail Afterbay. The report also discusses survey analysis and findings.", "itemRecordStatusId":1, "isModeled":false, "hasProfile":false, "disclaimer":"No warranty is expressed or implied regarding the usefulness or completeness of the information contained in this report. References to commercial products do not imply endorsement by the Bureau of Reclamation and may not be used for advertising or promotional purposes.", "sourceCode":null, "locationSourceCode":null, "externalDataUrl":null, "parameterSourceCode":null, "modelNameSourceCode":null, "temporalStartDate":null, "temporalEndDate":null, "spatialShortDescription":null, "publicationAuthor":"Ronald L. Ferrari", "publicationEditor":null, "publicationPublisher":"Bureau of Reclamation", "publicationPublisherLocation":"Denver, CO, USA", "publicationFirstPublicationDate":"2003-07-01T12:00:00+00:00", "publicationPeriodicalName":null, "publicationSerialNumber":null, "publicationDoi":null, "publicationVolume":null, "publicationIssue":null, "publicationSection":null, "publicationStartPage":null, "publicationEndPage":null, "createDate":"2021-09-22T17:36:36+00:00", "itemType":{ "_id":"RPRT", "definition":"Report", "createDate":"2018-11-28T14:19:59+00:00" }, "matrix":{ "_id":18, "matrix":"N/A", "definition":"Matrix is not applicable to this item", "createDate":"2020-03-26T13:58:55+00:00" }, "spatialGeometry":null, "spatialResolution":null, "spatialTransformation":null, "spatialOpenDataURL":null, "metadataFilePath":null, "binaryFilePath":"https://data.usbr.gov/rise/content-rise-public/rise/catalog-item/binary/Yellowtail%20Afterbay%20Bathymetric%20Survey%20Report%202000_508.pdf", "updateFrequency":{ "_id":14, "updatefrequency":"not planned", "definition":"there are no plans to update the data", "createDate":"2018-11-14T15:17:58+00:00" }, "updateDate":"2023-10-30T22:33:22+00:00", "verticalDatum":null, "dataStructure":"Uploaded file(s)", "itemStructureId":3, "parameterGroup":null, "parameterId":null, "parameterName":null, "parameterUnit":null, "parameterTimestep":null, "parameterTransformation":null }, "type":"CatalogItem", "relationships":{ "catalogRecord":{ "data":[ { "id":"/rise/api/catalog-record/7984", "type":"CatalogRecord" } ] }, "parameter":{ "data":[] } } } ], "Asset Name (in tessel)":"Yellowtail Afterbay Reservoir", "Total Capacity":2877.0, "Total Capacity Elevation":3192.0, "Active Capacity":2877.0, "Inactive Capacity Elevation":null, "Live Capcity":null, "Dead Capacity":null, "Dead Capacity Elevation":null, "Surcharge Capacity":null, "Maximum Water Surface Elevation":3192.0, "Vertical Datum":"Project Datum", "Vertical Datum Description":"RPVD is 2.8 feet lower than North American Vertical Datum of 1988 NAVD88.", "Total Capacity Surface Area":176.0, "name":"Yellowtail Afterbay and Yellowtail Afterbay Dam" }, "id":6882, "links":[ { "type":"application/json", "rel":"root", "title":"The landing page of this server as JSON", "href":"https://api.wwdh.internetofwater.app?f=json" }, { "type":"text/html", "rel":"root", "title":"The landing page of this server as HTML", "href":"https://api.wwdh.internetofwater.app?f=html" }, { "rel":"self", "type":"application/geo+json", "title":"This document as JSON", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr/items/6882?f=json" }, { "rel":"alternate", "type":"application/ld+json", "title":"This document as RDF (JSON-LD)", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr/items/6882?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr/items/6882?f=html" }, { "rel":"collection", "type":"application/json", "title":"USBR Reclamation Information Sharing Environment (RISE)", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr" } ] }