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Survey Bolt Central Park NYC

The bolt in this Central Park rock is believed to be one of the original survey bolts from when the city grid was first planned in 1811. Led by John Randel, surveyors had the task of marking each future street intersection aligned with the grid. They used marble monuments or iron bolts where there was exposed bedrock. The bolts bore a cross across the top. Very few of these markers exist anymore. Most were removed as roads and intersections were built. However, Central Park was not a part of the original plan for the city, known as The Commissioners’ Plan of 1811, so street intersection points may have been marked according to the grid, and left to remain since no intersection was actually built here. This bolt is known to be in the park, but the exact location is kept a secret for fear that it will be stolen or destroyed. After some intense searching of both the internet and park, you might be able to find it like I did. Source: http://untappedcities.com/2013/05/21/untapped-secrets-of-central-park-not-according-to-plan/
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