Hillis Peak is a mountain summit in Oregon that rises to 3,261 feet, or 994 meters. Though not a major high mountain, it is a recognized part of the state’s landscape. Its name dates to the 1860s and honors William P. Hillis, a pioneer settler. The peak reflects a broader period in Oregon’s history when Euro-American settlement shaped local place names, with landforms often taking the names of early residents and newcomers.