I'm not sure of the accuracy of this statement, but my contractor used to be the conservation agent at the NRCS a number of years ago. During a conversation, he mentioned use of the strip maps to identify wetlands. I think I remember him saying that they would be marked with "W" for wetlands, and "AW" for artificial wetlands. I got my strip maps with a phone call to the NRCS office secretary. I regret that other threads that you have recently initiated indicate difficulty in NRCS cooperation. I have often used adjacent government agencies (next county) when I wanted to try to crack the code of the focus county. ;\) When there's "dirty laundry" next door, you can often get the neighbor to tell you what size underwear is hangin' on the line.