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Mapping on Geograph

Published: 4 September 2009
Details of the various maps available on Geograph Website

The "Maps" Page

You're interested in a particular geographical area but aren't looking for any specific subject in particular? The maps page is the best starting point for browsing geographically. It offers access to various maps by way of tabs, detailed below. Whichever tab is selected, you can zoom in by clicking inside the map area and use the buttons on the right to navigate or zoom in and out.


 Small PhotoMap ExtractNew hybrid map, combining a rendered layer of images, overlaied with a basic wireframe map, good to view images while retaining some visible map for understanding the location. View Photo Map


The Coverage map is often referred to as the Red/Green map. It shows which squares have had at least one Geograph uploaded. Red squares have geographs, green ones haven't. A geograph is a picture which shows a subject in its context in the square named, and is taken from within that square. Orange squares still have other images (e.g. taken from outside the square); we call them supplementals. Green squares haven't had any images uploaded yet. View Coverage Map

Photo Mosaic

The Photo Mosaic map shows a 10x10km^2 mosaic of the first geographs submitted to each of the hundred squares in the area. The photo mosaic tab is only visible if you've zoomed in to the finest level by clicking inside the map. Such a 10x10km^2 area is called a hectad. (to view zoom zoome the Coverage map above)


The Personalised map shows the same kind of information as 'Coverage', but limited to only your own pictures - a square is red if you have submitted at least one geograph to it.


The Depth map shows how many images have been uploaded in total to each square - you can see hotspots in SE England, the major cities but also places like Snowdonia. Generally, the darker the colour, the more pictures we have.

User Depth

The User Depth map shows how many contributors have uploaded to each square. Generally, the darker the colour, the more visitors there has been there.

Draggable OS / Centisquare Coverage

These two tabs lead to a separate mapping page based on the Ordnance Survey's 1:50k mapping of Great Britain and adjacent smaller islands. To access these, you need to click a couple of times in the red/green map to zoom in a bit. The difference between the two tabs is the resolution of the coverage overlay shown by default. See section about the draggable OS map below for more information.

Check Sheet

Special text version of the current map (be it Coverage, Personalized, Depth or Recent Only) designed for easy printing to use when out Geographing. This only works at 100km and 10km width scale because of the amount of detail shown. The segment shown on the right shows four grid squares: the one top left is all-at-sea, top right has just one supplemental image, bottom left has two geographs and three supplemental images, and bottom right seven geographs. Grey squares already have geographs, white ones don't. Each square is labelled with its grid reference and the date of the most recent submission.


Displays the current graphical map (be it Coverage, Personalised, Depth, User Depth or Recent Only) in a webpage that should print nicely and in full colour. (Trying to print the map from the main display page usually doesn't work.)

Recent Only (aka TPoint Availability)

'Recent' images in this context are those taken within the last five years. This is especially useful to note squares without recent coverage - so they can be photographed to show changes over time. The first image uploaded within a rolling period of five years preceding the current date earns a "TPoint", so this map is particularly useful for people playing this game. View Recent Only Map

Interactive Coverage Map

Accessed from Maps link on the sidebar menu, this is a large, draggable, zoomable map with a wide choice of base mapping on the layers tab, top right. Current Ordnance Survey mapping up to 1:10,000, OS Historical GB, OS Historical Ireland, Google (various), OSM (various), and Bing. Various grid overlays can be selected from the layers tab.
The numbered dots indicate coverage - a pink dot indicates TPoint availability. Clicking on the dot will display a sample of images in the area. View Interactive Coverage Only Map

Draggable OS

The Draggable OS map is the Ordnance Survey's 1:50k base map with Geograph-specific information shown as an overlay.



The draggable map has a number of layers available via the Layers Toggle

OSGB Landranger

This is the always on basemap. Ordnance Survey 1:50,000 Raster mapping. Note can also zoom out and get overview mapping.

Gridsquare Coverage

Shows coverage by 1km squares, shows the number of photos.

Contributor Depth

Shows coverage by 1km squares, the number is the number of contributors to the square. Helps show where can get 2nd/3rd/4th Points.

TPoint Availability

Shown in purple are squares without a recent photo. (equivalent to the "recent only" on the normal "Maps" page)

Centisquare Coverage

Coverage by 100m squares. Colour key at bottom of page.

ScenicOrNot Data

Colour coded representation of scenicness. 1-10 scale, lighter/lower = more scenic. Data is sourced from ScenicOrNot websiteExternal link

Other Maps

We also have maps in a few other places...

Photo/Browse pages - Great Britain

Provides 1:50,000 extracts of Ordnance Survey mapping, can also be substituted for Interactive Google Maps.

Photo/Browse pages - Ireland

Here we use small extracts of mapping provided by Google Maps.

Search Results

The current page of results can be viewed plotted on a current Ordnance Survey Map - select "on a map" from the tab at the top or the dropdown top right.
(for many search results pages, can also click 'as KML' at the bottom of the page, to load photos on the Google Maps site, or even Google Earth, which offers some additional features)


Can embed small extracts of the 1:50,000 OS Raster map, or a page of search results as a Google Map. See this article for more detail
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