Piedras Negras

RegionMonterrey FIR Mexico (MMTY)
CoordinatesN 28� 37' 39" - W 100� 32' 7"
Elevation901 ft / 275 m
Magnetic Variation7.417� East
Transition Altitude (TA)18500 ft

Facility information:
Name Frequency Callsign
Monterrey Center 124.5 MMTY_CTR
Piedras Negras Tower 122.25 MMPG_TWR

Even though all frequencies and codes SHOULD be real,
they are only for use with IvAc, IvAp, and Flight Simulator,
and should NOT be used for real life aviation.