LIBROS DEL AUTOR: forest service usforest service

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  • Wetland Trail Design and Construction
    Federal Highway Administration / Forest Service U. S. Forest Service / Forest Service USForest Service
    Most experienced trail crews try to avoid wetlands because of the construction and maintenance problems they pose. Little has been published on wetland trail construction, and materials that are available are often outmoded or are too regionally focused. By pulling this information together from our experiences, we hope to answer questions you didn’t even know you had.In this...
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    33,46 €