Leased Oakway SD60 9085 leads a westbound train along the Columbia River approaching Rock Island Dam on July 13, 2008. (Photo by Josh Musser)

The "Spud Local" heads eastbound led by BNSF 2136. This local runs out of Wenatchee and services the food producers of Quincy and points east. The local is named the "spud" due to the large number of potato farms in central Washington. (Photo by Josh Musser)

An eastbound led by Ferromex 4641 climbs out of the gorge near the small town of Trinidad. (Photo by Josh Musser)

This is the west portal of Tunnel 11.1. A Seattle-bound stack train is led by BNSF 7747 in the latest "swoop" paint scheme. (Photo by Josh Musser)

BNSF 5505 with an eastbound stack train has just emerged from Tunnel 11.1 and is now above the ancient crater. (Photo by Josh Musser)

Another view of BNSF 5505 at the crater, about to enter a large rock cut. The small waterfall at the lower right feeds the lake in the actual crater. An interesting note here is that the water flow goes completely underground and then re-emerges near the bottom of the fill at lake level. (Photo by Josh Musser)

The crater lake is visible in this view of westbound BNSF 5259 with two Norfolk Southern units. The waterfall seen in the last photo is visible at the far right. (Photo by Josh Musser)