Debbie Robinson with the state Department of Natural Resources said Saturday morning that the actual size of the blaze was half what was initially reported. She said crews using a GPS unit in the air measured it at about 2,000 acres, or about 3 square miles.
The cause of the blaze is under investigation. No homes were threatened.
Robinson says crews will be monitoring the area Saturday but did not anticipate problems.
A section of eastbound Interstate 82 was closed for about three hours Thursday night due to the smoky fire in the Manastash Ridge area. It reopened when the fire was no longer close to the roadway.