File:Where it all began! (geograph 2651652).jpg

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Summary

Description
English: This cannon embedded in the ground just by the Northern Perimeter Road of London Heathrow Airport marks the north western end of General Roy's original base line for setting out the Ordnance Survey triangulation of Great Britain in 1784. The plaque on the base was put in place in 1926 to mark the 200th anniversary of General Roy's birth. The south eastern end of the base line is in Roy Grove at Hampton, on the other side of what was at the time Hounslow Heath
Date
Source From geograph.org.uk
Author Rod Allday
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Creative Commons Attribution Share-alike license 2.0
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Rod Allday / Where it all began! / 
Rod Allday / Where it all began!
Camera location51° 28′ 47″ N, 0° 27′ 01″ W  Heading=0° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
Object location51° 28′ 47″ N, 0° 27′ 01″ W  Heading=0° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing

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attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Rod Allday
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  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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16 October 2011

51°28'47.035"N, 0°27'1.260"W

heading: 0.0 degree

51°28'47.03"N, 0°27'1.26"W

heading: 0 degree

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Date/TimeThumbnailDimensionsUserComment
current07:57, 9 May 2020Thumbnail for version as of 07:57, 9 May 2020480 × 640 (109 KB)Ham IITransferred from geograph.co.uk using [https://tools.wmflabs.org/geograph2commons/ geograph2commons]
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