Things out here in the west are, in two words, s-p-r-e-a-d o-u-t. The posts are as well.
Unless you're right in a major metro area, you have to drive many miles to get to see action on the rails -- although in my opinion it's often worth the effort for what you can see.
When I moved from Austin to St. George last year, we flew by private plane so we could transport three housecats. What was neat about that was that we were at a lower altitude (about 10 thousand feet) and we followed the ATSF main line west from central NM to almost Flagstaff before heading north to Utah. We made a fuel/lunch/bio stop in Gallup, NM, too, which as you probably know is right along the ATSF main. We saw a lot of traffic on this line both from the air and on the ground in Gallup. Lots of trailers and containers on the move out here!
An interesting thing about out this way is the role the railroads played in popularizing the National Parks. ATSF built the line up to the South Rim, and took many thousands of people there over the years before autos took over the job.
Union Pacific built a line to Cedar City, UT, and transported people to the lodges around the area at Zion, Bryce, Grand Canyon North Rim, and Cedar Breaks. Read about them here:
Great Lodges
For about the first time in my life, I live in a town with no rail lines nearby. I have to either drive to Nevada to the UP Las Vegas route, or to Cedar City to see the little-used branch line there. There's plenty to see in Salt Lake, of course, but that's 4.5 hours away.