Catalog - Data.gov

#1 Federal

30-m Topography and bathymetry grid produced from swath interferometric, multibeam, and lidar datasets (navd_bath_30m Esri binary grid, UTM Zone 19N, WGS84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 01, 2026 at 04:10 AM

#2 Federal

Sediment Texture Units of the Sea Floor from Nahant to Northern Cape Cod Bay, Massachusetts (NAH_CCB_sedcover polygon shapefile, Geographic, WGS84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 01, 2026 at 06:05 AM

#3 Federal

Isochron of Holocene marine (Qmn and Qmd) sediment thickness on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (qmiso Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 03:33 AM

#4 Federal

One meter backscatter mosaic acquired by the U.S. Geological Survey with the 117- kHz SEA Ltd. SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_SWATH_BS_1M GeoTIFF IMAGE, UTM19 N).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 06:14 AM

#5 Federal

10-m backscatter mosaic produced from backscatter intensity data from sidescan sonar and multibeam datasets (BS_composite_10m.tif GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 05:56 AM

#6 Federal

Hillshaded relief image derived from elevations of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Urelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 04:33 AM

#7 Federal

Survey tracklines along which bathymetric data were collected with a SEA, SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_BathTracklines EsriI Shapefile, Geographic, WGS84).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 03:54 AM

#8 Federal

5 meter ArcRaster grid (gaps filled) of bathymetry acquired using a SEA Ltd. SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_BATH_F Esri BINARY GRID, UTM Zone 19N).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 04:53 AM

#9 Federal

Elevation of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (urelev Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 03:57 AM

#10 Federal

Interpretation of sea-floor geologic units on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Nahant_CCB_surfgeol polygon shapefile; Geographic WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 05:10 AM

#11 Federal

Hillshaded relief image derived from elevations of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Utelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 04:36 AM

#12 Federal

Survey lines along which acoustic backscatter data were acquired using a Klein 3000 sidescan sonar and a SWATHplus interferometric sonar offshore of Massachusetts within the northern Cape Cod Bay survey area (CCB_BackscatterTracklines Esri Shapefile, Geographic, WGS84).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 05:40 AM

#13 Federal

Survey lines along which EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data were collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicTrackline Esri Shapefile, Geographic, WGS84).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 03:22 AM

#14 Federal

One meter acoustic backscatter mosaic acquired using a Klein 3000 sidescan sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_KLEIN_BS_1M.TIF GeoTIFF Image, UTM Zone 19N).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 05:04 AM

#15 Federal

Marsh Shorelines of the Massachusetts Coast from 2013-14 Topographic Lidar Data

Organization: Department of the Interior
Dataset Last Updated: April 16, 2026 at 12:00 AM

The Massachusetts Office of Coastal Zone Management (CZM) launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the Massachusetts coast. Seventy-six maps were produced...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 05:04 AM

#16 Federal

Elevation of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (utelev Esri binary grid; UTM, Zone 19N, WGS 84)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 05:55 AM

#17 Federal

Seafloor photographs (JPEG format) collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SEABOSS_PHOTOS)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 04:37 AM

#18 Federal

Shot point navigation at even 500 shot intervals for EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicShot_500 shapefile)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:17 AM

#19 Federal

Digital Shoreline Analysis System version 4.1 Transects with Short-Term Rate Calculations for the Greater Boston region from the southern side of Cape Ann, Massachusetts to Sandy Neck Beach in Sandwich, Massachusetts (GreaterBoston_ST.shp)

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:53 AM

#20 Federal

5 meter ArcRaster grid of bathymetry acquired using a SEA Ltd. SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_BATH_5m Esri BINARY GRID, UTM 19N).

Organization: Department of the Interior
Dataset Last Updated: March 18, 2024 at 12:00 AM

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program,...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 03:42 AM

Search datasets

Draw a geographic box

30-m Topography and bathymetry grid produced from swath interferometric, multibeam, and lidar datasets (navd_bath_30m Esri binary grid, UTM Zone 19N, WGS84)

Sediment Texture Units of the Sea Floor from Nahant to Northern Cape Cod Bay, Massachusetts (NAH_CCB_sedcover polygon shapefile, Geographic, WGS84)

Isochron of Holocene marine (Qmn and Qmd) sediment thickness on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (qmiso Esri binary grid; UTM, Zone 19N, WGS 84)

One meter backscatter mosaic acquired by the U.S. Geological Survey with the 117- kHz SEA Ltd. SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_SWATH_BS_1M GeoTIFF IMAGE, UTM19 N).

10-m backscatter mosaic produced from backscatter intensity data from sidescan sonar and multibeam datasets (BS_composite_10m.tif GeoTIFF Image; UTM, Zone 19N, WGS 84)

Hillshaded relief image derived from elevations of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Urelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Survey tracklines along which bathymetric data were collected with a SEA, SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_BathTracklines EsriI Shapefile, Geographic, WGS84).

5 meter ArcRaster grid (gaps filled) of bathymetry acquired using a SEA Ltd. SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_BATH_F Esri BINARY GRID, UTM Zone 19N).

Elevation of the late-Wisconsinan regressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (urelev Esri binary grid; UTM, Zone 19N, WGS 84)

Interpretation of sea-floor geologic units on the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Nahant_CCB_surfgeol polygon shapefile; Geographic WGS 84)

Hillshaded relief image derived from elevations of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (Utelevhs GeoTIFF Image; UTM, Zone 19N, WGS 84)

Survey lines along which acoustic backscatter data were acquired using a Klein 3000 sidescan sonar and a SWATHplus interferometric sonar offshore of Massachusetts within the northern Cape Cod Bay survey area (CCB_BackscatterTracklines Esri Shapefile, Geographic, WGS84).

Survey lines along which EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data were collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicTrackline Esri Shapefile, Geographic, WGS84).

One meter acoustic backscatter mosaic acquired using a Klein 3000 sidescan sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_KLEIN_BS_1M.TIF GeoTIFF Image, UTM Zone 19N).

Marsh Shorelines of the Massachusetts Coast from 2013-14 Topographic Lidar Data

Elevation of the Holocene transgressive unconformity beneath the Massachusetts inner continental shelf between Nahant and Northern Cape Cod Bay (utelev Esri binary grid; UTM, Zone 19N, WGS 84)

Seafloor photographs (JPEG format) collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SEABOSS_PHOTOS)

Shot point navigation at even 500 shot intervals for EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection data collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay (CCB_SeismicShot_500 shapefile)

Digital Shoreline Analysis System version 4.1 Transects with Short-Term Rate Calculations for the Greater Boston region from the southern side of Cape Ann, Massachusetts to Sandy Neck Beach in Sandwich, Massachusetts (GreaterBoston_ST.shp)

5 meter ArcRaster grid of bathymetry acquired using a SEA Ltd. SWATHplus interferometric sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_BATH_5m Esri BINARY GRID, UTM 19N).