This dataset consists of land areas that are run and maintained by U.S. Governmental authorities. These files were created for planning purposes and should not be used as a definitive source of mapped data for any of the associated types of land ownership. There have been intentional omissions due to sensitive data types and in some cases, the source documents cannot be considered complete. The Federal Lands data layer was updated to show the most current known lands presently owned by the Federal Government. The sources of the updates came from several sources (the US Park Service, Maryland Department of Planning, MD Property View, ed. 2005, etc.). Ownership status was checked over parcel boundaries and known property records for completeness and accuracy. US Postal properties were not included in this data set.
Local Protected Lands
공공데이터포털
This data illustrates parcels subject to some type of preservation easement as well as properties owned by federal, state, and local governments. In addition, properties owned by local land trusts and private conservation organizations such as The Nature Conservancy are included. Conversation easements include easements from the Maryland Agricultural Land Preservation Foundation (MALPF), Rural Legacy, Forest Legacy, Maryland Environmental Trust (MET), county and state purchases of development rights, transfers of development rights, open space from home owners associations, local open space requirements, and private conservation easements. This data is complied from settlement data directly from conservation program administrators, county GIS updates on preservation activities, and public available data from the Maryland Department of Natural Resources. In addition, this data is in the process of being realigned to the 2012 IMAP parcel polygons. The realignments at available on a county by county basis depending on the production schedule.
Local Protected Lands
공공데이터포털
This data illustrates parcels subject to some type of preservation easement as well as properties owned by federal, state, and local governments. In addition, properties owned by local land trusts and private conservation organizations such as The Nature Conservancy are included. Conversation easements include easements from the Maryland Agricultural Land Preservation Foundation (MALPF), Rural Legacy, Forest Legacy, Maryland Environmental Trust (MET), county and state purchases of development rights, transfers of development rights, open space from home owners associations, local open space requirements, and private conservation easements. This data is complied from settlement data directly from conservation program administrators, county GIS updates on preservation activities, and public available data from the Maryland Department of Natural Resources. In addition, this data is in the process of being realigned to the 2012 IMAP parcel polygons. The realignments at available on a county by county basis depending on the production schedule.
Federal Lands within Indian Country
공공데이터포털
,This web application contains information from the Bureau of Indian Affairs, The U.S.G.S., The U.S. Census and BLM. The following information is in relation to the Surface Management Agency layer created by BLM: The Surface Management Agency (SMA) Geographic Information System (GIS) dataset depicts Federal land for the United States and classifies this land by its active Federal surface managing agency. The SMA feature class covers the continental United States, Alaska, Hawaii, Puerto Rico, Guam, American Samoa and the Virgin Islands. A Federal SMA agency refers to a Federal agency with administrative jurisdiction over the surface of Federal lands. Jurisdiction over the land is defined when the land is either: Withdrawn by some administrative or legislative action, or Acquired or Exchanged by a Federal Agency. This layer is a dynamic assembly of spatial data layers maintained at various federal and local government offices. The GIS data contained in this dataset represents the polygon features that show the boundaries for Surface Management Agency and the surface extent of each Federal agency’s surface administrative jurisdiction. SMA data depicts current withdrawn areas for a particular agency and (when appropriate) includes land that was acquired or exchanged and is located outside of a withdrawal area for that agency. The SMA data do not illustrate land status ownership pattern boundaries or contain land ownership attribute details. The SMA Withdrawals feature class covers the continental United States, Alaska, Hawaii, Puerto Rico, Guam, American Samoa and the Virgin Islands. A Federal SMA Withdrawal is defined by formal actions that set aside, withhold, or reserve Federal land by statute or administrative order for public purposes. A withdrawal creates a title encumbrance on the land. Withdrawals must accomplish one or more of the following: A. Transfer total or partial jurisdiction of Federal land between Federal agencies. B. Close (segregate) Federal land to operation of all or some of the public land laws and/or mineral laws. C. Dedicate Federal land to a specific public purpose. There are four major categories of formal withdrawals: (1) Administrative, (2) Presidential Proclamations, (3) Congressional, and (4) Federal Power Act (FPA) or Federal Energy Regulatory Commission (FERC) Withdrawals. These SMA Withdrawals will include the present total extent of withdrawn areas rather than all of the individual withdrawal actions that created them over time. A Federal SMA agency refers to a Federal agency with administrative jurisdiction over the surface of Federal lands. Jurisdiction over the land is defined when the land is either: Withdrawn by some administrative or legislative action, or Acquired or Exchanged by a Federal Agency. This layer is a dynamic assembly of spatial data layers maintained at various federal and local government offices. The GIS data contained in this dataset represents the polygon features that show the boundaries for Surface Management Agency and the surface extent of each Federal agency’s surface administrative jurisdiction. SMA data depicts current withdrawn areas for a particular agency and (when appropriate) includes land that was acquired or exchanged and is located outside of a withdrawal area for that agency. The SMA data do not illustrate land status ownership pattern boundaries or contain land ownership attribute details. For more information on theProtected Areas Database (PAD-US) 3.0 Datalayer visit: https://www.usgs.gov/programs/gap-analysis-project/science/pad-us-data-download or U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2022, Protected Areas Database of the United States (PAD-US) 3.0: U.S. Geological Survey data release, https://doi.org/10.5066/P9Q9LQ4B.,