Though I'm a true fan of long Montana drives, I'll confess to slightly mixed emotions about doing it in the winter. There's the whole snow thing, of course, and the ridiculously short days, and the frigid north wind that seems to appear every time you stop for a bathroom break. But there are real joys, too, that you just don't experience in the summertime. There are fewer tourists, and the winter light makes for great photographs, and the snow itself is often really lovely.
Here's a photo I took on Saturday to illustrate some of that. This is US 191, somewhere between Big Timber and Harlowton.