In 1989, Seneca Jones Timber Company, affiliated with Seneca Sawmill, became a landowner with the acquisition of 30,000 acres of timberland, marking the company's extension of absolute quality control from seedling selection to finished product. Seneca Jones Timber Company owns and manages more than 165,000 acres of Oregon forestland. The company s second-growth timber is available for harvest. Its predominant species is Douglas-fir, with significant stands of hemlock, cedar and white fir. The company is also involved in a cooperative tree improvement program, which allows for an increase in both timber yield and quality. Seneca Jones Timber Company is located in Eugene, Ore.