- The fascinating botanical transition between the Sand Dunes Wilderness Study Area, and Lost Forest Research Natural Area. These dunes represent the largest system of inland shifting sand dunes in the Pacific Northwest, and comprise 11,000 acres of BLM administered land. The Lost Forest Research Area, includes 9,000 acres and transitions from the dune environment with sage, Juniper and Ponderosa forest. Christmas Valley. Lake County, Eastern Oregon.
Christmas Valley, Lake County, Sand Dunes