||This article does not cite any sources. (February 2012)
The List of Classified Structures ("LCS") is a National Park Service database of buildings, roads, monuments, artifacts, and other objects at/near United States National Parks (e.g., tablets in towns near the Gettysburg National Military Park). The database classifies the structures by location, type, historical contribution, etc.; and identifies each by structure, LCS, and database record numbers, e.g., Acadia National Park BLDG0001 is a historic district contributing structure (1931 guardhouse/lodge) with "LCS ID" 006582 and RECORDNO=30.