"Although he is now remembered mostly as a romantic nature writer, in his own time and place Henry David Thoreau was a highly trained, well regarded, disciplined though eccentric land surveyor. In the summer of 1859, he stood under a willow beside the Concord River contemplating a gash he had cut low in the tree’s trunk, to gauge the water level. In 22 miles the Concord fell only 32 inches — it was very nearly a pond — and any additional water heaved the river up and over its banks, before gravity’s current slowly siphoned it out to sea. Yet flooding wasn’t necessarily a problem. Indeed, the annual springtime deluge was the town’s lifeblood, because the waters always rolled back, leaving behind a thick, black, nutrient-rich muck spread all across the bottomlands, whose field grasses grew fat and sleek on nature’s bounty, perfect fodder for the farming town’s livestock. But in 1798, in the predawn haze of the industrial era, the Middlesex Canal Corporation downstream at Billerica raised the height of an old mill dam that had been slung across the river, setting off a century-long fight for control of this resource. ..."
Places Journal
Thoreau’s drafting tools and surveying chain, exhibited at the Concord Museum.
2009 April: Henry David Thoreau, 2012 September: Walden, 2015 March: A Week on the Concord and Merrimack Rivers (1849), 2017 March: Civil Disobedience (1849), 2017 April: The Maine Woods (1864), 2017 June: This Ever New Self: Thoreau and His Journal, 2017 July: Pond Scum - Henry David Thoreau’s moral myopia. By Kathryn Schulz, 2017 July: Walden, a Game, 2017 October: Walden Wasn’t Thoreau’s Masterpiece, 2017 December: Walden on the Rocks - Ariel Dorfman
