do uros burrow?

I think I'm about to get a mali uromastyx to go in my 55 gal and I wanted to know if they are big on burrowing.

mine don't burrow, but they do stay in their hide a lot.

If given a good soil, Uros will make 6 ft long burrows, or more. They LOVE to dig and burrow, and it is good physical AND mental exercise.