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1.START-END WEST: start of Arco Pass Rd, at a dirt road jc, north east of Arco 2.route to Arco Pass goes right, profile stays left 3.TOP: 7000ft, Beaverland Pass 4.START-END WEST: low point on W33N Rd, where it crosses King Creek near Moore

Approaches

From South. The beginning of the Arco Pass Rd is not signed from US93, and a little complicated to find. In the end, most roads south of Arco, leading to the local land fill, work, and go to an intersetion of dirt roads, where Arco Pass Rd is signed. It heads straight for a flank of King's Mountain, any structural geologist's dream. A complex overturned fold is clearly exposed in the croissant-like layer cake rocks.

Past some farm structures and an ever-so-slight bend in the road, at the bottom of the wide sage valley, the road splits twice, for destinations Arco Pass ,Woodland Canyon or Beaverland Pass. Both intersections are clearly signed. While traveling up the lower flank of King's Mountain, an out and back leads to a trailhead for a nearby arch in the limestone cliffs. You can clearly see the arch from the last intersection.But without having walked up to it and knowing what to look for, it is almost impossible to recognize it in the complex pattern of limestone cliffs.

A little further up, the road becomes rocky and steep, but then unexpectedly crests at a point, where the northern part of the Lost River Range (including Mt Borah, the highest point in Idaho), and the White Knob Mountains to the west come into view. Near the top tracks in both directions lead higher.

From North. (described downwards). ... nice views of the farmlands surrounding the Little Lost River, and the white capped mountain surrounding it. The middle section is very steep and rocky - impossible to ride up - not so bad on the way down. At the beginning of pavement a sign even points up to the pass, for travelers in the upward direction.