Tooele Valley Railway 104 smokes up the clear mountain air while descending the Oquirrh Mountain foothills from Anaconda's International Smelter. The former D&RGW 01100 series wood caboose was purchased from the Rio Grande in 1957 at a cost of $795.60 for the caboose and, in addition, $8.20 for inspection, $22.40 for freight, and preparation for service costs of $295.80 for labor and $51.40 for supplies. The entire 6.235 mile journey from Anaconda's International Smelter to the WP interchange at Warner was downgrade, with a maximum descent of 2.4% (information via Don Strack's UtahRails.net website).