从护林员的监视台上 - 1937年,波托西单位弗洛伊德塔附近的公路工作

This photo shows two men in the cab of an Austin-Western No. 77 Senior Dual Drive Motor Grader working on Truck Trail Road 380 in June 1937. According to Keith Haddock’s 2002 Earthmover Encyclopedia, the Austin 77 series of graders were of an advanced design that offered blade movements similar to machines of today. Interestingly,…

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地面穿透雷达在历史悠久的宅基地找到未标记的坟墓

在公墓,内森(Nathan)和橄榄(Olive Boone)的坟墓是少数已知地点之一。密苏里州自然资源部通常使用地面穿透雷达(GPR)来寻找水线和泄漏或埋藏的坦克。但是,该部门在内森(Nathan)和奥利弗·布恩(Olive Boone)宅基地的历史遗址中将这一技术置于另一种用途。

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