Add collections of maps

Adding whole collection raises a number of visitors on your website. Only collections that meet these requirements can be uploaded:

1. High resolution scans of old maps (300 DPI, or at least 2 Mpix)

2. Maps in a zoomable viewer, available online without payments or passwords

3. Each map has its own permanent URL, taking users directly to the viewer

4. Coordinates for the corners of each map

To upload your maps to OldMapsOnline, we need to receive:

Spreadsheet with the list of maps

To add a map collection we need a excel spreadsheet with basic information about each map.


Each spreadsheet must have following columns:

id: Your unique identifier
viewer: URL to the zoomable viewer of the scan on the web
title: Title of the map
date_from, date_to: Date of what is depicted on the map, not the publishing date;
if you know the exact date, then in either YYYY, YYYY-MM or YYYY-MM-DD format
if you know only the century, then as YYXX; eg. 16XX for the 1600-1699
north: Latitude of the north-most point
south: Latitude of the south-most point
east: Longitude of the east-most point
west: Longitude of the west-most point

Use validator to test your spreadsheet is correct.


Thumbnails of your maps in size ideally fitting into 1000 x 1000 px with the same ID as used in the spreadsheet should be provided or linked from the spreadsheet.

In case your maps are available via an image service (such as IIIF or Zoomify, Aware, MrSID, IIPImage, etc) then thumbnails are generated automatically.

Institutions using the Georeferencer service can skip this step.

Once your spreadsheet is valid and thumbnails are ready, please contact us at [email protected]

Need help?

There is a simple how-to manual to help you to publish your map online and get the right coordinates for each map. Please, visit


Please test your data before submitting them to us. Once your spreadsheet is correct, please contact us.