rim question?

I found a very small hold in one of rims of my Big Horn. My question, can that rim be replaced with a rim like the others? Where do rims come from? Now I don't have a spare that holds air.
Currently in Smith Center, KS. O, well on ward to our next major stop, Reno.
Bob
Mariposa

Bob, I think Tredit supplies the wheels along with the tires for Heartland. I would try calling Heartland Customer Service asap. 877-262-8032

If it is a tredit rim, you can call them. They can tell you where any local dealers are along your way.