Arch Canyon, Bridges National Monument. In April, 1984 Tim Coats, Gary Rugerra and Scott Baxter made the first ascent of Dream Speaker, two pitches on the west face (II, 5.11). The 250-foot Cedar Mesa sandstone tower lies five miles up Arch Canyon, which is located between Bridges National Monument and Blanding, Utah. They rappelled off the north side of the rim, using two bolts, to reach the tower. In the fall of 1985 Stan Mish and Dan Longmade made the first ascent of Arch Canyon Tower, the second most prominent tower of Cedar Mesa sandstone in Arch Canyon.