Union Pacific has a line that runs up from Reno, into California, and then over through Gerlach. They used to run more Intermodal trains from the bay area up to the Reno junction, through Doyle, ca and Flannigan, nv to Gerlach. But, they recently lowered rail beds and notched out tunnels on Donner pass, so most double stack trains go to Reno/Sparks before going to Elko. Theoretically, you could catch going north (in the small yard near the University) or on the fly (hella dangerous) and take it up north on a junk train. BUT, you'd have to hope that it won't be heading west at Flannigan. AND, you better hope like hell that there is a crew change in Gerlach. It doesn't run through town, so they don't necessarily have to slow down enough to get off on the fly. And if not, you're going straight to Winnemucca.
It doesn't look like the original poster has (or will) come back, so this is probably a useless post.