Updates
Later, 11:15 p.m.: in the comments below, I reference the Lewis and Clark bridge south of Williston. Here is a nice website regarding that bridge.
Original Post
Steffes is a Dickinson-based steel company. Among its products: cattle guards. I think I blogged about cattle guards two years ago. Wrong. Last May, 2011.
Near the bottom of the article, just to remind us how lucrative the Bakken is:
A company working in a similar market is Diverse Energy Systems of Grafton [North Dakota] which was Lean Technologies until its purchase by the Houston-based company.