URL：https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Truck_load_of_ponderosa_pine,_Edward_Hines_Lumber_Co,_operations_in_Malheur_National_Forest,_Grant_County,_Oregon,_July_1942.jpg/220px-Truck_load_of_ponderosa_pine,_Edward_Hines_Lumber_Co,_operations_in_Malheur_National_Forest,_Grant_County,_Oregon,_July_1942.jpg
掲載元：https://ja.wikipedia.org/wiki/バーンズ_(オレゴン州)
