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Honey Hollow Watershed is a watershed on the south side of the Delaware River a few miles north of New Hope, Pennsylvania. The Honey Hollow Watershed Conservation Area was created in 1939 and was the first agricultural area in a small watershed to show the benefits of soil, water, and wildlife conservation in action. ==The project== The Honey Hollow Watershed consists of five farms totaling about 650 acres located near the Delaware River The conservation area was established by local farmers, with the help of the Soil Conservation Service in Upper Darby, Pennsylvania. The project was a model of cooperative conservation efforts by farmers. By 1941 terraces and diversion ditches were built to control runoff on steep slopes and hedges were planted to control erosion. The project attracted national attention when Vice President Henry Wallace visited the first time in 1944. Conservationist Louis Bromfield also became associated with the project. P. Alton Waring, one of six farmers involved in the project, wrote about the project in the United States Department of Agriculture publication "Team Work to Save Soil and Increase Production." and in the magazine "The Land." The watershed was declared a National Historic Landmark in 1969.〔〔 and 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Honey Hollow Watershed」の詳細全文を読む スポンサード リンク
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