York Road is believed by the FA to be the oldest senior football ground continuously used by the same club. Maidenhead FC played their first game on this ground on 16th February 1871.

http://www.bbc.co.uk/news/uk-england-berkshire-19928342

This is an approximate position

Maidenhead Football Ground, York Road, Maidenhead
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by Royal Borough of Windsor and Maidenhead on 13 October 2012

Colour: blue

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See also...
Marvin Barretto on Flickr