Some of them wound up on MM&A, not sure where they sent after that. Others wound up on various shortlines, I'm not sure which ones.
There's a bunch on the Providence and Worcester RR
There are still a few running on Iowa Pacific lines, especially the San Luis & Rio Grande.
Editor Emeritus, This Week at Amtrak
IP has about 8. 7 on SLRG and one on SNC.
Regrettably, this is not an all-inclusive list, but it is rather representative: http://www.rrpicturearchives.net/orderList.aspx?order=1410LMX&mfg=GE
There's a few on the NERR too. They recently got repainted in the Pumpkin rip-off scheme.
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