Glossary & Abbreviations
MTC - Main Timing Control
TC - Timing control
RC - Route Check
L - Turn Left
R - Turn Right
SO - Straight On
XR - Right at crossroad
XL - Left at crossroad
LWR - Long way round. Used at some triangles
NAM - Not as mapped
NTR - No Through Road
N, S, E, W - North, South, East, West
OM - Official Mileage to the .01 of a mile
TL - Township Line
RL - Range Line
White - a white road
