The Washington Board of Natural Resources has approved the transfer of 42.5 acres of state forest trust land in Skamania County to conservation status, a move the state Department of Natural Resources says will give the county more than $300,000 in revenue.  The transfer allows DNR to replace a parcel of working timberland north of Stevenson that is tied up by federal endangered species restrictions, and a legislative appropriation two years ago allows the County and DNR to receive proceeds as if a timber harvest took place.  DNR will use some of its proceeds of over $100,000 to buy replacement land.