1860HD Worlds largest rock trencher 

Trencor 1860HD, I went to Texas a couple years ago to see the giant rock cutters of Texas, here is the granddaddy of them all. The 230-250 plus ton 1,500 hp monster. Cutting rock for a huge new water supply line near Breckenridge Texas. Only a a few of these monsters has been built, most operate in the hard rock of Texas nowdays.