The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data primarily consist of water depths, but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification, and bottom type information.
NOAA is responsible for archiving and distributing the source data as described in this metadata record.

The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data primarily consist of water depths, but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification, and bottom type information.
NOAA is responsible for archiving and distributing the source data as described in this metadata record.

These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Lower Columbia River Chinook salmon ESU.Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-water line (33 CFR 319.11). In areas where ordinary high-water line has not been defined, the lateral extent is defined by the bankfull elevation.

These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Puget Sound Chinook salmon ESU. These river/stream (line) data were used in conjunction with nearshore (polygon) data in the SalmonChinook_PugetSoundESU_20050902 feature class.Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-water line (33 CFR 319.11). In areas where ordinary high-water line has not been defined, the lateral extent is defined by the bankfull elevation.

These data represent critical habitat designated (June 16, 1993, 58 FR 33212) under the Endangered Species Act for the Sacramento River winter-run Chinook salmon ESU.The official NMFS critical habitat dataset for this Chinook salmon (SalmonChinook_SacramentoRiverwinterrunESU_19930616) is comprised of both river/stream (line) data and estuary (polygon) data; together the polygons and lines represent the entire final critical habitat designation.The following waterways, bottom and water of the waterways and adjacent riparian zones: The Sacramento River from Keswick Dam, Shasta County (River M

These data represent critical habitat designated (December 28, 1993, 58 FR 68543) under the Endangered Species Act for the Snake River fall-run Chinook salmon ESU.Critical habitat includes the water, waterway bottom, and adjacent riparian zone of specified river reaches. Adjacent riparian zones are defined as those areas within a horizontal distance of 300 feet (91.4 m) from the normal line of high water of a stream channel (600 feet or 182.8 m, when both sides of the stream channel are included) or from the shoreline of a standing body of water.

These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Upper Columbia River spring-run Chinook salmon ESU.Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-water line (33 CFR 319.11). In areas where ordinary high-water line has not been defined, the lateral extent is defined by the bankfull elevation.

These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Upper Willamette River Chinook salmon ESU.Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-water line (33 CFR 319.11). In areas where ordinary high-water line has not been defined, the lateral extent is defined by the bankfull elevation.

These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Columbia River chum salmon ESU.Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-water line (33 CFR 319.11). In areas where ordinary high-water line has not been defined, the lateral extent is defined by the bankfull elevation.

These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Hood Canal summer-run chum salmon ESU.The official NMFS critical habitat dataset for this Chum salmon (SalmonChum_HoodCanalsummerrunESU_20050902) is comprised of both river/stream (line) data and nearshore (polygon) data; together the polygons and lines represent the entire final critical habitat designation.From line data: Critical habitat includes the stream channels within the designated stream reaches, and includes a lateral extent as defined by the ordinary high-wa