December 2019

December 2024

The Massachusetts Division of Fisheries and Wildlife (MassWildlife) has mapped bathymetry (measures of water depth) at a scale of 1:10,000 for some inland water lakes and ponds in Massachusetts. The data were gathered on boats by a GPS/depth sounder. The data samples were then extrapolated to form contour lines. The Massachusetts Department of Environmental Protection provided sounding data gathered during water quality surveys to augment MassWildlife's data for a small number of water bodies.This tile service contains the linework labeled in feet below the surface and imagery depicting water depth with a dark-to-light-blue color ramp.See full metadata.

Each year, MassWildlife stocks brook, brown, rainbow, and tiger trout in over 450 lakes, ponds, rivers, and streams in 264 towns across Massachusetts! Fall stocking is complete. Stocking locations are shown on the map and table below.

MassWildlife bathymetry contour lines for many lakes and ponds with public access in the Commonwealth of Massachusetts. The Massachusetts Division of Fisheries and Wildlife (MassWildlife) has mapped bathymetry (measures of water depth) at a scale of 1:10,000 for some inland water lakes and ponds in Massachusetts. The data were gathered on boats by a GPS/depth sounder. The data samples were then extrapolated to form contour lines and a depth surface. The Massachusetts Department of Environmental Protection provided sounding data gathered during water quality surveys to augment MassWildlife's data for a small number of water bodies. See full metadata. Map service also available.

Massachusetts water features, including lakes, ponds, rivers, streams and wetlands. From USGS hydrography. For full metadata and links to download free data please visit https://www.mass.gov/info-details/massgis-data-massdep-hydrography-125000.

The Mill Pond elver ladder is one of only a few elver ladders exist in Massachusetts and even fewer have a trap to enumerate the number of migrating young of the year elvers (Anguilla rostrata). This sampling effort is the start of what is expected to be a long term proxy for the status of American eels in small coastal watersheds in Massachusetts.

These data were taken from the Division of Marine Fisheries' (DMF) Commercial Lobster Catch Database with records from 1990-2001. The polygon vector data represents DMF's Statistical Reporting Areas, which include a subset of the NOAA Fisheries', also known as the National Marine Fisheries Service, reporting areas. Data is presented as the maximum number of pots fished in a statistical reporting area by year and license type, and the total pounds of lobster harvested in that area by year and license type. The 25 distinct "statistical reporting areas" cover a large portion of the Gulf of Maine and south, including the territorial waters of the Commonwealth of Massachusetts. Fourteen of the areas compose the territorial waters, while the other 11 match those of the National Marine Fisheries Service areas for offshore bodies of water bordering the Commonwealth's territorial areas, including George's Bank. These areas are used mainly on maps for fishermen to report their landings (including lobster harvest), as well as for producing plots in various Massachusetts Division of Marine Fisheries (DMF) annual publications showing landings per area.

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