iotamaps.com - IOTA islands mapping

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iotamaps - Welcome!

Welcome to iotamaps.com

iotamaps.com is the premier mapping site of IOTA groups and islands, for radio amateurs, short-wave listeners, CB'ers and all who have an interest in IOTA, the Islands On The Air award scheme.

The IOTA award scheme has been in existence for over 40 years, and expeditions to IOTA islands are followed closely by tens of thousands world-wide. By using our mapping page, you can quickly identify in which IOTA islands group or individual island^* an expedition is based.

The maps we provide - based on open-source Leaflet technology - are dynamic, zoomable and pannable, and customizable for your convenience:

• You can choose any one of several mapping overlays to show you the detail you need to see.
• A dynamic terminator (day/night shadow) layer is provided, which is updated every ten seconds, and which can be toggled on or off.
• Two dynamic grid layers are provided, which can be toggled on or off, and showing greater detail when the map is zoomed in :
  • a Maidenhead locator grid to display labeled grid squares in the map,
  • a latitude / longitude grid to display labeled latitude and longitude lines in the map.
• A position indicator is built-in, showing the latitude, longitude and 6-character locator (example: JO65jr) at the mouse-position.
• You can store your own QTH or home position by using the "Preferences..." item in the menu above the map: this opens a dialog where you can enter your ham radio or CB callsign, and set your QTH / home position. Once you have done this, an icon will appear in the map at the chosen position.

The map iself may be found here or by clicking on the "mapping" link in the top or bottom menus.  Happy island bagging!

^* The listings of islands in the IOTA database contain NO islands' positions data - none at all!  A few people have tried to ascertain such positions, with varying degrees of success.  We at iotamaps have taken great care to identify, and obtain positions for, as many islands in the IOTA listings as possible.  Although most have already been found, we're working continually to identify those few which are still "missing", and yet to be identified.  Perhaps you can help?  If you have local knowledge of such "missing" islands in a particular geographical area, use our contact form to let us know.