Grand fir infill (IMAGE) Oregon State University Caption Extensive infill of grand fir into what were historically open eastern Oregon stands dominated by ponderosa pine and larch. Photo by James Johnston, OSU College of Forestry. Credit Photo by James Johnston, OSU College of Forestry Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.