# Stone fleets { "id": "S91004362", "title": "Stone fleets", "url": "/topics/S91004362", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "4da5facb24415d83", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "4666996126300636742", "address_version": "morton4x16-v1", "coordinates": [ 0, 21, 45687, 10240 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on fleets of small sailing vessels purchased by the United States Navy Department, filled with stones and sunk at entrances of Confederate harbors during the Civil War in the hopes of closing channels to blockade runners. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh91004362 No owner-reviewed local answer yet.