Drag the red marker to where you want a grid reference. (Only valid in UK OS region)
The grid refs will appear on the right, and corresponding boxes on the map.
Press the Satellite button to turn on the aerial photos, or Hybrid for both maps and aerials.
Use the + and - buttons to zoom in and out, and the arrows to pan.
Please do not record using 2km or 10km grid refs. These are for information only.

To remember a location for future use, right-click over "Link to this location", select "Copy Link Location" (Firefox) or "Copy Shortcut" (IE), paste it into your browser's web address field, then bookmark it. Build your own set of bookmarked locations. You can also paste it into emails, or use in links on a website. (The zoom, aerial and resolution settings are copied too!).
If you find this tool slow and jerky with Internet Explorer, try Firefox, or Chrome or Opera, which are all much smoother and faster on my PC.
Showing boundaries slows the map update process, considerably with Internet Explorer. Turn them off while moving and zooming the maps if you find this to be a problem. County names can be found by clicking on the blue markers.

Want to plot a set of records on Google Earth? Use Bedfordshire Natural History Society's interface HERE