Thank you for your help. I was just hunting around for clues as to where it was located in the lst file. The only thing I had to go on so far is that using DMAMEM made no difference to the measured performance.
I hope not posting full code here is not going to get me banned but it's rather large and superfluous in this case. ;)
I'm writing an emulator and putting the entire 64K memory map in an array. When compiled the array appears to reside in RAM2...