Question: What is the tributary of Little Butte Creek that starts near the county seat of Jackson County in Oregon?
Sentence (from "Medford, Oregon"): The city was named in 1883 by David Loring, civil engineer and right-of-way agent for the Oregon and California Railroad, suggested by Medford, Massachusetts, near his home town of Concord, Massachusetts, and in recognition of its supposed position near the middle ford of Bear Creek.
Relevant evidence: No