The Nature Conservancy's (TNC) Secured Lands dataset for Eastern
North America (2009) is the primary source of New Hampshire
protected areas data in PAD-US 1.1 (CBI) Edition. TNC's Eastern
Conservation Science office compiles information annually on New
Hampshire's public and private conservation lands. The data set
includes all lands that are permanently secured against conversion
to development either by direct fee ownership or permanent
easements. This information is obtained from external sources
(Below, see "Data Source Overview") and is used with
permission. Updates are published annually.
This dataset is an extraction from PAD-US 1.1 (CBI Edition), by
state. The PAD-US 1.1 (CBI Edition) data set portrays the nation's
protected areas with a standardized spatial geometry and numerous
valuable attributes on land ownership, management designations, and
conservation status (using national GAP and international IUCN
coding systems). The PAD-US 1.1 (CBI Edition) defines protected
areas to include all lands dedicated to the preservation of
biological diversity and to other natural, recreation and cultural
uses, and managed for these purposes through legal or other
effective means (adapted from IUCN definition). The database
represents the full range of conservation designations that preserve
these natural resources in the U.S.
Protected areas are cornerstones of national and international
conservation strategies. By way of these designations, lands and
waters are set-aside in-perpetuity to preserve functioning natural
ecosystems, act as refuges for species, and maintain ecological
processes. Complementary conservation strategies preserve land for
the sustainable use of natural resources, or for the protection of
significant geologic and cultural features or open space. PAD-US 1.1
(CBI Edition) attempts to include all available spatial data on
these places. It is our goal to publish the most comprehensive
geospatial data set of U. S. protected areas to date.