[1] Robe Canyon was chosen as a part of the railway to transport gold and silver ore mined at Monte Cristo located in the Cascade Mountains to Everett.
Although the canyon section of the railway had six tunnels, since much of the route was constructed on wooden frameworks at the edge of the bubbling stream, the structures were often swept away in floods, requiring constant repair.
Yet, the major volunteer effort was reserved for construction of the new Lime Kiln Trail at the west end of the park.
Finally, in the late fall, trail workers reached a significant milestone: the site of the historic railway bridge spanning the South Fork of the Stillaguamish River across from Tunnel #1.
[2] The trail is located on Forest Service Road 41 near the Mountain Loop Highway, approximately 6 miles (9.7 km) east of Granite Falls.