Question:

looking for a map of lake off I 49 rest area in opelousas,la?

Answers:

A-Best: I know the lake you're talking about. Hmmmm....I guess "google" is your best bet....but if you're looking for a topo for water depths...maybe the Corp of Eng. or La.dept. of Wildlife and Fisheries may be the way to go.  

A: Have you look on google be for. You may have good luck to fine it on google.  

A: I would go to map quest.  

A: Try google earth. It most likely will show the lake.