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Now you've got me curious, also. Does it appear that the "chiseled holes" might have been made with a "star drill" or were they more crudely done? In other words, are the "holes" in the boulders "round and rather deep" or are they rather mis-shapen and not so deep? As for "line of sight" between the boulders, that could have been accomplished through some sort of wooden tower construction to elevate the observer to points above the boulders and "plumbing down" to the "chiseled holes." In what country did all this take place? Charles _____ From: maphist-boun...@geo.uu.nl [mailto:maphist-boun...@geo.uu.nl] On Behalf Of Lynn Brant Sent: Monday, August 23, 2010 8:23 AM To: maphist@geo.uu.nl Subject: [MapHist] request for information on ancient surveying I am trying to research whether the following scenario is/was possible and would appreciate any insight. First, we are talking about the 14th century, mid to late 1300s. The contention is that something was buried (no not treasure, perhaps a land claim) and that to mark it for a future party intersecting lines were drawn to mark the spot. The spot is on the side of a small knoll. There are six very large boulders with chiseled holes (I'm curious about that too). When these three pairs of boulders are connected with lines by gps, all three lines intersect over the target spot. My question is, at that time, how would a party have drawn such a grid? Would they not have needed a line of sight between each pair of boulders? The first line would have been easy, just find two boulders (there are many) that connect across the target area. Then find a third boulder and sight to a 4th such that that line crosses the first at the desired point. But the third has me puzzled. The boulders were too large to move (car size). How could this be done? Thanks in advance!
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