Is there anyone who know where is a rock climbing wall around Warren,MI?

l am not sure if u r asking about indoor climbing or outdoor.

For indoor, u should be able to look in the yellow pages & find a climbing gym or use the internet to find the closest location.

For outdoor, u should think about getting a route guide book for the area u r interested in - l like the ''Falcon Guide'' series of books. A guide book will show u where the climbing areas are, what routes & what difficulties r available, & diagrams of the routes that will show u where to climb & where the route goes.

Good Luck