(A
newer version of these data is now available,
Protected Areas - Maine, October 2012
)
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 United States.
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.