00F - Broadus
00U - Big Horn County
1S3 - Tillit Field
32S - Stevensville
38S - Deer Lodge-City-County
3U3 - Bowman Field
3U7 - Benchmark
3U8 - Big Sandy
48S - Harlem
4U6 - Circle Town County
57S - Troy
5U8 - Geraldine
6S0 - Big Timber
6S3 - Woltermann Memorial
6S8 - Laurel Muni
79S - Fort Benton
7S0 - Ronan
7S6 - White Sulphur Springs
88M - Eureka

8S0 - Starr-Browning Airstrip
8S1 - Polson
8U6 - Terry
97M - Ekalaka
9S2 - Scobey
9S4 - Mineral County
9U0 - Turner
BHK - Baker Muni
CII - Choteau
CTB - Cut Bank Intl
EKS - Ennis - Big Sky
GDV - Dawson Community
GGW - Wokal FieldGlasgow-Valley County
HRF - Ravalli County
HVR - Havre City-County
HWQ - Wheatland County at Harlowtown
JDN - Jordan
LTY - Liberty County
LVM - Mission Field

LWT - Lewistown Muni
M46 - Colstrip
M75 - Malta
MLS - Frank Wiley Field
OLF - L M Clayton
PO1 - Poplar Muni
PWD - Sher-Wood
RPX - Roundup
RVF - Twin Bridges
S34 - Plains
S59 - Libby
S64 - StandfordBiggerstaff Fld
S69 - Lincoln
S71 - Edgar G Obie
S85 - Big Sky Field
SBX - Shelby
SDY - Sidney-Ruchland Rgnl
THM - Thompson Falls
WYS - Yellowstone