Click the 'Layers' icon to overlay flood related map layers. Click on points, lines or areas to show extra information. Click the 'Base Maps' icon to change the underlying map.

Map layers are from:

• EA: Environment Agency
• NE: Natural England
• LR: Land Registry
• BGS: British Geological Survey
• TW: Thames Water
• WBC: West Berkshire Council
• PVFF: Pang Valley Flood Forum or residents of the Pang Valley

Each layer is prefixed with the initials of the source organisation. If the PVFF has derived the data from another source, it is prefixed as PVFF/"Other Source". The list of layers, sources and legal info, including links to download PVFF data is here.

Sinkhole locations were derived by a valley resident from this paper and by studying OS maps and EA LIDAR.

NOTE: Many features are on private land. Don't visit without permission from the relevant landowner.