Search datasets
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This dataset contains Historic Landmarks (by structure) officially designated by the District of Columbia. This is a consolidated collection of structures with historical significance within the...
Search relevance: 128.76 | Views last month: 26 | Catalog Last Checked: November 10, 2026 at 10:38 PM -
Provides information on buildings and structures within designated historic districts and individual landmark sites.
Search relevance: 58.78 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:32 PM -
This dataset contains Historic Districts officially designated by the District of Columbia. Additional data sets are also available providing information on (1) historic landmarks in the District...
Search relevance: 54.80 | Views last month: 24 | Catalog Last Checked: November 10, 2026 at 10:38 PM -
This data set represents the official National Park Service layer of High Potential Historic Sites along the Lewis and Clark National Historic Trail. As of 2024, this feature class represents...
Search relevance: 51.07 | Views last month: 5 | Catalog Last Checked: November 12, 2026 at 03:01 AM -
The Chicago Historic Resources Survey (CHRS), completed in 1995, was a decade-long research effort by the City of Chicago to analyze the historic and architectural importance of all buildings,...
Search relevance: 42.85 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 06:00 PM -
This dataset is in an outdated format. For both slightly updated data and a better user experience, please use this link. The Chicago Historic Resources Survey (CHRS), completed in 1995, was a...
Search relevance: 42.05 | Views last month: 11 | Catalog Last Checked: September 10, 2026 at 06:02 PM -
This dataset is in an outdated format. For both slightly updated data and a better user experience, please use this link. The Chicago Historic Resources Survey (CHRS), completed in 1995, was a...
Search relevance: 42.05 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 06:01 PM -
Provides information on all items designated or under consideration for designation (i.e. calendared) by the New York City Landmarks Preservation Commission (LPC). This dataset contains...
Search relevance: 38.84 | Views last month: 56 | Catalog Last Checked: November 10, 2026 at 11:39 PM -
Polygon coverage of the seven(7) Preservation Districts and 110 Individual Landmarks. Polygons have attributes for Preservation District Name (PRESDIST_NAME) is the field that shows on the land...
Search relevance: 35.42 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:12 PM -
Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a...
Search relevance: 20.03 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:16 PM -
Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks, Protected Places, and other federal lands collected as part of...
Search relevance: 19.99 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 09:30 PM
