Deval to Valley/Tower A20

From the flat crossings, with northwest quadrant connector, with the triple-track former C&NW Northwest Line, with tower in the northeast corner, and the flat crossing, with the CN (former Wisconsin Central, original Soo Line) North Central Line, at Deval Tower (MP 12.0), where there is a northeast quadrant connector, the line heads northeast, double track, current-of-traffic, Automatic Block Signals, maximum speed 50 mph (but local 30 mph speed restriction across the crossings, MP 11.9 to MP 12.3), past a crossover, Intermediate Signals on a signal bridge near MP 13.0, a bridge over the Des Plaines River, a turn north-northeast, Intermediate Signals on a signal bridge near MP 14.0, an erstwhile south-facing east-side spur to the Glenview Naval Air Station, a north-facing spur on the west side, Intermediate Signals on a signal bridge near MP 16.5, a crossover and the connector to the former Milwaukee North Line at Towwer A 20, from Shermer (MP 17.5), a bridge over the former Milwaukee North Line, on embankment at Techny, and the junction with the line from Skokie (and once from Mayfair) at Valley (MP 21.2), where the line turns just west of due north, with the routing of the erstwhile North Shore line to the east, and a 45 mph speed restriction starts.