Jake,
Here's the ATCS Monitor info you need:
The Staples Sub is 900mhz from Northtown yard to Big Lake (some portions are using fiber optics; Interstate to Coon Creek) The balance of the Staples Sub in on ARES VHF 161.010 (west of Staples it's 160.710).
The BNSF Wayzata and Morris Subs are on ARES VHF 161.010 (no 900 ATCS). Also most of the Twin Cities Terminal area is on ARES VHF (161.010).
The Canadian Pacific is all on 900 ATCS from Shoreham Yard (Minneapolis to Murray siding).
Contact me directly if you have more questions. We have over 600 miles displayed to the internet if you might have mobile internet access.
Don
odnrr@comcast.net