One place that might seem surprising, but is well worth a try, is the Defense Technical Information Center. The search: "forward operating bases in iraq" "operation iraqi freedom" map gets 10 hits, including Fire for Effect: Calling for a More Potent Energy
System, which has some maps that give base locations and names on pages 41 and 42. You can also try other searches such as "Iraq war 2003" bases map, but I am getting a LOT of irrelevant hits. Part of the problem is that DTIC does not have "proximity search" - like Google, you have to use either exact phrases, or look for the default AND (all of the words/phrases somewhere on the pages but maybe very far apart). Images.google.com gets about 764 results for the search: "iraq war 2003" bases occupation map site:edu
Some similar searches in Google Web search led to a West Point Iraq war history site. It also might be well worth trying to add site:ac.uk , to get a non-US university perspective - or even site:iq - to get Iraqi websites.
Jim Miller firstname.lastname@example.org