How long is this historic east–west, large-wheeled wagon route and emigrant trail in the United States on whch Barlow Pass is on?
Barlow Pass (Oregon) Barlow Pass is a 4155 ft mountain pass in the Cascades in Oregon, on the Oregon Trail, and a major milestone of the Barlow Road. It is the crest of the Cascade Mountains: the dividing line between watersheds of the Deschutes River and those that flow into the Sandy River.
Santiam Pass Santiam Pass is a 4817 ft mountain pass in the Cascade Range in central Oregon in the United States. It is located on the border between Linn and Jefferson counties, about 18 mi northwest of Sisters, between the prominent volcanic horns of Three Fingered Jack to the north and Mount Washington to the south. Several other smaller volcanoes, including cinder cones and tuyas, are found near the summit of the pass. U.S. Route 20 connects eastern Oregon with the valley of the Santiam River on the west via Santiam Pass. One of the 19 or 20 lakes by the name of Lost Lake is located beside the highway just west of Santiam Pass. The pass may be approached from the west by three distinct routes: