File:Reconstruction of the rampart of the contravallation, Alesia (7700412514).jpg

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The rampart consisted of a terrace (agger) surmounted by a parapet and towers. The terrace was built up with packed earth extracted from trenches. It was protected by a wooden barrier and constituted the core of the rampart. Mounds of turf formed two walls, exterior and interior. The turf's natural root system helped solidify and adhere the mound.

The towers were spaced one every 18 - 20 m. They rested on a square of four supporting wood posts set about 3 m apart. The two front posts were solidly planted in the packed earth of the terrace.
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Reconstruction of the rampart of the contravallation, Alesia

Author Carole Raddato from FRANKFURT, Germany
Camera location47° 32′ 13.69″ N, 4° 29′ 49.86″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This image, originally posted to Flickr, was reviewed on 14 December 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.

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Date/TimeThumbnailDimensionsUserComment
current00:00, 14 December 2013Thumbnail for version as of 00:00, 14 December 20134,288 × 3,216 (9.12 MB)File Upload Bot (Magnus Manske) (talk | contribs)Transferred from Flickr by User:Marcus Cyron

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