Database Submissions

Website

Submit a Diaphone location not currently in the Database

State*
Town/City (Name)*

County (or Canadian province/territory) — auto-filled from map when possible
How many are/were there*

Horn(s) still present?*
Are they still actively used?*

Piston Type*
Type* (B/C/Unk)

Location (coordinates required)

Latitude*
Longitude*

Address (optional — for lookup)

Open in Google Maps

Tip: click the map to set coordinates. Or type an address and press Lookup (uses OpenStreetMap).

Notes (details; no HTML stored)

Proof / Source (required) — please add a few sentences and/or links that demonstrate the existence or former existence of the Diaphone (e.g., map/photo link, news article, archive record, museum page, first-hand photo with date). This is for review only and is not published on the map.

Upload evidence (optional) — up to 5 files, max 10 MB each. Allowed: JPG/PNG/WebP/GIF/PDF.

Your name (optional)
Your email (optional)