Mount Jefferson, Oregon, United States (Google Maps ⧉, OpenStreetMap ⧉)

Referenced In

"… a mountain which we had not yet seen, and to which he gave the name of mount Jefferson. Like mount St. Helen’s its figure is a regular cone covered with snow, and is probably of equal height with that mountain…"

"…mount Hood itself bears south 30° west, and the snowy summit of mount Jefferson south 10° west."