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When general-purpose GIS software was developed in the 1970s and early 1980s, including programs from academic labs such as the Harvard Laboratory for Computer Graphics and Spatial Analysis, government agencies (e.g., the Map Overlay and Statistical System (MOSS) developed by the U.S. Fish & Wildlife Service and Bureau of Land Management), and ...
The USGS Gap Analysis Program maintains four primary data sets: land cover, protected areas, species and aquatic. The GAP Land Cover Data Set is the most complete map ever produced of vegetative associations for the US. Classified into 551 ecological systems, and 32 modified ecological systems (where human impacts have had an effect).
The Maine Land Trust Network (abbreviated MLTN) promotes discussion among the eighty land trusts in Maine, United States. [1] It was established in 1995. [2]As of 2023, MLTN members have conserved over 2,685,000 acres (1,087,000 ha) of land, maintain over 2,500 miles (4,000 km) of hiking trails, and provide over 340 water access points.
The unorganized territory (UT) of Maine is the area of Maine that has no local, incorporated municipal government. The unorganized territory consists of 435 townships, primarily heavily forested areas of the state's north, east, and west, along with de-organized municipalities and islands.
In 1982, the Maine Coast Heritage Trust co-founded the nationwide Land Trust Alliance. In 1985, the MCHT acquired the 193-acre Witherle Woods Preserve, the first of many preserves, such as the Stone Barn Farm , acquired to provide coastal access and preserve natural habitat.
This is a list of land patents provided by the British crown for land in what is now the state of Maine: This list is incomplete ; you can help by adding missing items . ( February 2011 )
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On July 21, 2023, the OMB delineated one combined statistical area, three metropolitan statistical areas, and one micropolitan statistical area in Maine. [1] As of 2023, the largest of these is the Portland-Lewiston-South Portland, ME CSA , comprising the region around Maine's largest city of Portland .