Molam street in Udon

A few years ago, while visiting Udon, I came across a relatively short street that was lined with shophouses serving as offices for several molam troupes (khana molam).

I'm heading back to Udon next week, but can't remember where the street is exactly. I believe it was off Makkheng Rd near a large wat.

Can anyone based in Udon help me out? Thanks.