@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/807a0174-3d87-4c75-a826-986ea6568601> a dcat:Dataset ;
    dct:description """The Tillamook Bay subbasins and Nehalem River basins encompass 1,369 and 2,207 respective 
square kilometers of northwestern Oregon and drain to the Pacific Ocean. The Tillamook, Trask, 
Wilson, Kilchis, and Miami Rivers flow into Tillamook Bay near the towns of Tillamook and Garibaldi. 
The Wilson and Trask River basins cover the largest areas (500 and 451 square kilometers, 
respectively) whereas the Tillamook and Kilchis Rivers encompass similar sized areas (156 and 
169 square kilometers, respectively) and the Miami River the smallest area (94 square kilometers). 
In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey completed a 
reconnaissance-level assessment of channel condition and bed-material transport relevant to the 
permitting of in-stream gravel extraction along the the major alluvial portions of six river systems, 
including the lowermost 14.1 km of the Tillamook River, 16.3 km of the Trask River, 15.2 km of 
the Wilson River, 7.8 km of the Kilchis River, 11.6 km of the Miami River, and 31.4 km of the 
Nehalem River. To support these analyses, digital channel maps were produced to depict channel 
and floodplain conditions in the Tillamook Bay sub-basins and Nehalem River basin from different 
time periods. GIS layers defining the wetted channel and bar features and channel centerline in 
the study area were developed for four time periods: 1939, 1967, 2005, and 2009. For this project, 
the active channel was defined as area typically inundated during annual high flows, and includes 
the low-flow channel as well as side channels, islands, and channel-flanking gravel bars. The wetted 
channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial 
photographs from 1939 and 1967 were scanned, rectified, and mosaicked for this project (See 
metadata for each photograph set for more information on the rectification process and resolution 
of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.""" ;
    dct:identifier "USGS:e412a289-35cb-40f4-8200-b0ca5c9b9575" ;
    dct:issued "2025-11-23T00:01:09.594422"^^xsd:dateTime ;
    dct:modified "20201117"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-123.8934 45.3952, -123.8934 45.6209, -123.7238 45.6209, -123.7238 45.3952, -123.8934 45.3952))"^^gsp:wktLiteral ] ;
    dct:title "Wetted channel and bar features for the Tillamook, Trask, Wilson, Kilchis, and Miami Rivers, Oregon in 1967" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Mackenzie Keith" ;
            vcard:hasEmail <mailto:mkeith@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/807a0174-3d87-4c75-a826-986ea6568601/resource/0943f480-5894-4577-a096-4c7532e5fa11>,
        <https://data.amerigeoss.org/dataset/807a0174-3d87-4c75-a826-986ea6568601/resource/0d11fc5c-666c-40a8-be88-347c9141de83> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "channel-stability",
        "ckan",
        "environment",
        "fluvial-geomorphology",
        "geo",
        "geoscientificinformation",
        "geoss",
        "historical-channel-change",
        "inlandwaters",
        "kilchis-river",
        "miami-river",
        "national",
        "nehalem-bay",
        "nehalem-river",
        "north-america",
        "oregon-coast-range",
        "sediment-transport",
        "tillamook-bay",
        "tillamook-county",
        "tillamook-river",
        "trask-river",
        "united-states",
        "usgs-e412a289-35cb-40f4-8200-b0ca5c9b9575",
        "wilson-river" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/807a0174-3d87-4c75-a826-986ea6568601/resource/0943f480-5894-4577-a096-4c7532e5fa11> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:20:58.359611"^^xsd:dateTime ;
    dct:modified "2025-11-23T00:01:09.580433"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.e412a289-35cb-40f4-8200-b0ca5c9b9575.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/807a0174-3d87-4c75-a826-986ea6568601/resource/0d11fc5c-666c-40a8-be88-347c9141de83> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:20:58.359621"^^xsd:dateTime ;
    dct:modified "2025-11-23T00:01:09.580868"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://water.usgs.gov/lookup/getspatial?ofr2012_1187_Tillamook_Wetted_Channel_and_Bar_Features_1967> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .