Did you hear about the so-called “monster train” that chugged through the Inland Valley on Jan. 10? This 3.5-mile Union Pacific test train, which traveled from Texas to Long Beach, was said to be the longest freight train in California history. At one point in its journey, the train spanned virtually the entire length of Pomona.

Well, an Ontario man named Joe Perry, who’s a railroad buff, followed the train from Imperial County to Ontario, documenting various legs of the trip on his website, www.chasingsteel.com. Below is a video he shot from the Mountain Avenue overpass at about 2 p.m. The train, with nine locomotives and nearly 300 cars, takes almost five minutes to pass. You can read Perry’s account here.

If you were in a hurry, you wouldn’t have wanted to be among the motorists stuck at a railroad crossing. You can see them streaming across the tracks the last few seconds of the video.