More firefighters are headed to an Eastern Oregon fire near the Owyhee Dam, where temperatures are expected to cool but the winds are forecast to pick up.
Fire officials said crews totaling about 240 people were on the fire Wednesday morning. Helicopters are dumping water on it.
Spokesman Tim Johnson said flames were reported within a few hundred yards of structures at the state park.
Local officials, though, have reopened the road to the dam for recreational users. They say the road will be busy with fire vehicles and could be closed again on short notice.
The fire area is estimated at up to 62 square miles, or 40,000 acres. Lightning started it Monday.
Farther south in Malheur County, firefighters expect by Friday to contain three fires totaling 12,000 acres.