In nineteen twenty, Congress created the Monongahela National Forest. The United States Forest Service soon had trees planted in some areas and a rough road system built.

 
  • 1920年,國會(huì )創(chuàng )建了國家森林公園。國家林業(yè)局很快在一些地方植樹(shù),盤(pán)山道也修建起來(lái)。
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