The registry shelves
649 dossiers carry a formal designation — a federal register, a landmark listing, a state mark. The raw strings run long and inconsistent, so the archive files them onto 7 canonical shelves.
Network to Freedom — 556 files
The National Park Service's registry of documented Underground Railroad sites, programs and facilities — the archive's single largest shelf by a wide margin.
National Register of Historic Places — 46 files
The federal list of districts, buildings and sites judged worth preserving — dates and reference numbers folded into one shelf.
National Historic Landmark — 31 files
The tier above the Register — places designated nationally significant, not merely listable.
State & local registers — 8 files
California Historical Landmarks, a Recorded Texas Historic Landmark, a Puerto Rico statutory listing, a state historic park — designation below the federal shelf.
National Historic Site — 6 files
Congressionally recognized sites, most administered by the Park Service — one carries a World Heritage designation alongside.
Other federal designation — 1 file
A national battlefield — federal ground under a different program.
World Heritage — 1 file
UNESCO listing — the only shelf in the room with international jurisdiction.
What a listing anchors
A designation is a registrar's signature: a government body examined the place and filed it as real, old and worth keeping. That signature is one of the strongest things a dossier can carry — it anchors the documented-history column with dates, acreage and a nomination file that can be pulled and read.
It anchors nothing in the ghost column. Registers list fabric and fact — the kiln, the battle, the escape route — and stay silent on what witnesses later reported hearing there. The skew of the shelves makes the distinction plain: 556 of the 649 designated files sit on one shelf because a single federal program documents Underground Railroad ground at volume — paperwork filed for courage, not for ghosts.
So read a listed dossier as two records sharing a folder. The designation vouches that the place stands in the documented world; the claims beside it remain what they always are here — reported, not asserted.
Record last amended October 2, 2026 · shelves recomputed with the archive