Day after day the wagons had plodded on, and day after day the snow-covered hills fell behind, the streams were crossed, the lonely camps abandoned to the wilderness. And day after day she seemed to dwindle, to grow less. The vans were tiny things, their bright-colored sides tawdry in the stillness and snow. All was immensity where they seemed to crawl at a snail's pace into the vastness beyond belief.
(from Heller With a Gun, by Louis L'Amour)