pile of stacked trees with big machines and logging equipment from governor knowles state forest in northern wisconsin - dnr has w

are background bark big brown closeup construction cut detail dnr energy environment equipment fire firewood forest forestry forests fuel garden governor harvested has heavy industrial industry knowles log logging lumber lumberjack machine machinery machines material mill natural nature northern old outdoor park pattern pile rough stack stacked state texture that timber tool tractor tree trees trunk wisconsin wood wooden woodpile work working