About IRHB maps

From International Robin Hood Bibliography

By Henrik Thiil Nielsen, 2020-12-22. Revised by Henrik Thiil Nielsen, 2020-12-22.

The interactive maps on IRHB come in two flavours:

  1. maps on pages concerned with a specific item of information, for example Robin Hood (Buckingham)
  2. maps on landing pages, for example Leicestershire place-names.

What you can do with maps of the type listed in #1 you can also do with those of the second type. However, the latter have some additional interactive features.

Things you can do with both types of map

All the interactive maps support the following.

Moving the map view
Click and hold down the left mouse button (or press with your finger) and move the map view to the desired location.
If you are using a wheel mouse, turn the wheel forward to zoom in, backward to zoom out. Otherwise click or press the plus sign in the top-left corner to zoom in, click or press the minus sign below the plus sign to zoom out.
Full screen view
Click or tap the third control top-left to enter fullscreen view. Click or tap the same control to return to normal view.
Choose mapping service
Clicking or tapping the control if the top-right corner lets you choose between mapping services. Currently the following are supported:
  • Stamen.Terrain. A terrain map.
  • NLS. The Ordnance Survey's 1" series of maps, hosted at the National Library of Scotland's map subsite
  • OpenStreetMap. The default map.

Things you can do on item maps

At present, if you click a green marker on an item map, say the map of Robin Hood (Buckingham), a small box with the name of the locality or a brief text is displayed.

Things you can do on landing page maps

Just below maps on landing pages in the place-names section are three buttons, labelled respectively Overview, Navigation, and Choropleths. Unless the view associated with a given button is already displayed, clicking or tapping any of these takes you to the corresponding map view. Each is dealt with separately below. What is said under Overview below applies also to the maps on landing pages in the festivals section, where there are as yet no navigation maps or choropleths.


This is the standard view. All that has been stated above, except that under "Things you can do on item maps", applies here. In addition you can do the following:

Clicking a cluster icon
When two to nine markers would overlap or be displayed very close to one another at the given resolution (zoom level), they are instead represented by a blue cluster icon; 11 to 49 are represented by a yellow icon, and one hundred or more by a red one. Clicking such a cluster icon causes the map to zoom in and recalculate the display of markers and/or cluster icons. Note that such clusters are not related to IRHB's concept of 'place-name clusters'
County or city boundaries
On a page listing place-names or festivals in an English county or city, the area of the city or administrative division will often be tinted a very light green and its boundaries indicated in a darker green. This feature is interactive only in that it grows or shrinks as you zoom in or out.


In this view, which is not zoomable, the (abbreviated) name of a county is displayed as you hover over the county in question.
If you click within a county, you will be taken to the section landing page of that county, thus if you click on Devon on the navigation map in the Festivals section, you will be taken to the page Devon festivals, while if you click on for instance Leicestershire on the navigation map in the place-names section, you will be taken to the page Leicestershire place-names. London and the three ridings of Yorkshire are not indicated on the map, but links are provided in the text below it.
At present navigation maps are found only on landing pages in the place-names section.


The choropleths can be used in exactly the same way as the navigation maps, though this is not their main purpose. For a detailed discussion of them, the information they provide, the data on which this is based, and their interactive features see Place-name choropleths.

At present choropleths are found only on landing pages in the place-names section.