Prime Hook, Delaware National Wildlife Refuge
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资源简介：
This dataset contains boundary layers for the Prime Hook National
Wildlife Refuge in Delaware.
National Wildlife Refuges are federal lands managed by the U.S. Fish
and Wildlife Service (USFWS). The primary source for boundary
information is the USFWS Realty program (status maps, legal
surveys). An effort by the USFWS Region 5 (northeast states -ME,NH,VT,
MA, RI, CT, NY, PA, NJ, MD, DE, WV, VA) Realty Division, Cartography
and Spatial Data Services Branch has resulted in digital refuge
boundaries for all refuges in the northeast at a scale of 1:24,000.
The purpose of this data is to serve as a spatial reference of refuge
boundaries for other data layers in GIS and mapping applications. It
is specifically not intended to be used as a land survey or
representation of land for conveyance or tax purposes.
Status maps were registered to geographic coordinates, boundaries were
digitized and labeled. Digital files were updated using survey and
collateral data for newly acquired tracts, then stepped through 3
levels of quality-control review for spatial and thematic
accuracy. Refuge boundary and tract lines were registered to USGS DRGs
dated 1981-1989 (Lewes & Milton quads). Complete process description
can be found in "Service Lands Boundary Data SOP".
[Summary provided by U.S. Fish & Wildlife Service]
提供机构：
SCIOPS
