We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'gage railroad'.

HOn3 United DRGW Narrow Gauge Passenger Cars Brass Imports Rio Grande 5 cars
HOn3 United DRGW Narrow Gauge Passenger Cars Brass Imports Rio Grande 5 cars
$202.50 (7 Bids)
Time Remaining: 1d 19h 32m
Rio Grande K 27 2 8 2 steam loco Japan Westside BRASS HOn3 Narrow Gauge H953
Rio Grande K 27 2 8 2 steam loco Japan Westside BRASS HOn3 Narrow Gauge H953
$149.97
Time Remaining: 1d 20h 21m
25 ton shay Benson Log Co PFM united Japan BRASS HOn3 Narrow Gauge 4repair H954
25 ton shay Benson Log Co PFM united Japan BRASS HOn3 Narrow Gauge 4repair H954
$152.50 (10 Bids)
Time Remaining: 1d 20h 22m
Auxiliary Water Car Unitah DRGW PFM Tender BRASS HOn3 Narrow Gauge H955
Auxiliary Water Car Unitah DRGW PFM Tender BRASS HOn3 Narrow Gauge H955
$56.00 (2 Bids)
Time Remaining: 1d 20h 22m
BEMO ABE 4 4 BERNINA EXPRESS YELLOW RAILCAR AUTORAIL HOm Narrow Gauge Rhb
BEMO ABE 4 4 BERNINA EXPRESS YELLOW RAILCAR AUTORAIL HOm Narrow Gauge Rhb
$250.00
Time Remaining: 3d 42m
HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit
HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit
$49.99
Time Remaining: 3d 13h 13m
ALL 11 VOLUMES NARROW GAUGE PICTORIAL
ALL 11 VOLUMES NARROW GAUGE PICTORIAL
$215.00
Time Remaining: 3d 15h 46m
Buy It Now for only: $280.00
SPECTRUM NARROW GAUGE  LITTLE RIVER LOGGING  RAIL BUS  On30 Scale TrainNEW
SPECTRUM NARROW GAUGE LITTLE RIVER LOGGING RAIL BUS On30 Scale TrainNEW
$129.97
Time Remaining: 4d 57m
Buy It Now for only: $129.97
SPECTRUM NARROW GAUGE  GREEN BRIAR  BIG RUN  w SOUND  On30 Scale Train NEW
SPECTRUM NARROW GAUGE GREEN BRIAR BIG RUN w SOUND On30 Scale Train NEW
$239.97
Time Remaining: 4d 15h 40m
Buy It Now for only: $239.97
AY100 05 3x Utz Fama AlpinLine Gauge 0 m DC 5251 Gradient running track MINT
AY100 05 3x Utz Fama AlpinLine Gauge 0 m DC 5251 Gradient running track MINT
$29.63
Time Remaining: 4d 18h 41m
Buy It Now for only: $29.63
On30 On3 Narrow Gauge Custom Scratch Built Mining ore car Detailed Weathered On3
On30 On3 Narrow Gauge Custom Scratch Built Mining ore car Detailed Weathered On3
$54.00
Time Remaining: 5d 20h 58m
Buy It Now for only: $54.00
On30On3 Narrow Gauge Custom Scratch Built On30 Boxcar and Caboose Nice Details
On30On3 Narrow Gauge Custom Scratch Built On30 Boxcar and Caboose Nice Details
$185.00
Time Remaining: 5d 20h 59m
Buy It Now for only: $185.00
On30On3 Narrow Gauge Custom Scratch Built On30 Crew Car Well Detailed Weathered
On30On3 Narrow Gauge Custom Scratch Built On30 Crew Car Well Detailed Weathered
$84.00
Time Remaining: 5d 21h
Buy It Now for only: $84.00
ON3 CONVERSION FROM BACHMANN 2 6 0 BRASS TRUCKS NARROW GAUGE CS
ON3 CONVERSION FROM BACHMANN 2 6 0 BRASS TRUCKS NARROW GAUGE CS
$119.00
Time Remaining: 5d 22h 54m
Buy It Now for only: $155.00
ay71 05 10 x Utz  FAMA Roco alpinline Gauge 0 M DC 90 5117 Compensation
ay71 05 10 x Utz FAMA Roco alpinline Gauge 0 M DC 90 5117 Compensation
$38.66
Time Remaining: 6d 9h 27m
Buy It Now for only: $38.66
Noch 58671 HOM Hoe Rhne Viaduct for Narrow Gauge Railway  NIP
Noch 58671 HOM Hoe Rhne Viaduct for Narrow Gauge Railway NIP
$43.76
Time Remaining: 7d 11h 26m
Buy It Now for only: $43.76
Noch 58668 HOM Hoe bruchstein viadukt for Narrow Gauge Railway  NIP
Noch 58668 HOM Hoe bruchstein viadukt for Narrow Gauge Railway NIP
$58.34
Time Remaining: 7d 11h 26m
Buy It Now for only: $58.34
PECO Streamline On30 Wye Y Turnout Narrow Gauge Medium Radius SL E597 New
PECO Streamline On30 Wye Y Turnout Narrow Gauge Medium Radius SL E597 New
$25.95
Time Remaining: 7d 18h 9m
Buy It Now for only: $25.95
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd
$71.66
Time Remaining: 8d 4h 13m
Buy It Now for only: $71.66
Narrow Gauge Cumbres  Toltec 6 CD PHOTO SET 1300 JPEGS
Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
$29.99
Time Remaining: 8d 14h 49m
Buy It Now for only: $29.99
ULRICH O SCALE 1 48 On3 On30 FORD CAB  CHASSIS NARROW GAUGE ALL METAL
ULRICH O SCALE 1 48 On3 On30 FORD CAB CHASSIS NARROW GAUGE ALL METAL
$49.99
Time Remaining: 8d 18h 37m
Buy It Now for only: $49.99

Other On30 Scale train items recently purchased through this site:

25 ton shay Benson Log Co PFM united Japan BRASS HOn3 Narrow Gauge 4repair H954
ULRICH O SCALE 1 48 On3 On30 FORD CAB LOGGING TRAILER NARROW GAUGE ALL METAL
SPECTRUM NARROW GAUGE LITTLE RIVER LOGGING RAIL BUS On30 Scale TrainNEW
On30On3 Narrow Gauge Custom Scratch Built On30 Boxcar and Caboose Nice Details
HOn3 United DRGW Narrow Gauge Passenger Cars Brass Imports Rio Grande 5 cars
ULRICH O SCALE 1 48 On3 On30 FORD TANDEM CAB CHASSIS NARROW GAUGE ALL METAL
Narrow Gauge Cumbres Toltec 6 CD PHOTO SET 1300 JPEGS
On30On3 Narrow Gauge Custom Scratch Built On30 Crew Car Well Detailed Weathered
Auxiliary Water Car Unitah DRGW PFM Tender BRASS HOn3 Narrow Gauge H955
Roco H0E 31028 3 Large h0e schmalspur Narrow Gauge Track Set 37 pcs NEW
On30 On3 Narrow Gauge Custom Scratch Built Mining ore car Detailed Weathered On3
PECO Streamline On30 Wye Y Turnout Narrow Gauge Medium Radius SL E597 New
Narrow Gauge and Short Line Gazette Magazine lot of 13 Model Railroad 1979 1981
Rio Grande K 27 2 8 2 steam loco Japan Westside BRASS HOn3 Narrow Gauge H953
ULRICH O SCALE 1 48 On3 On30 FORD CAB CHASSIS NARROW GAUGE ALL METAL
SPECTRUM NARROW GAUGE GREEN BRIAR BIG RUN w SOUND On30 Scale Train NEW
Noch 58668 HOM Hoe bruchstein viadukt for Narrow Gauge Railway NIP
Noch 58671 HOM Hoe Rhne Viaduct for Narrow Gauge Railway NIP
ON3 CONVERSION FROM BACHMANN 2 6 0 BRASS TRUCKS NARROW GAUGE CS
SPECTRUM NARROW GAUGE V DUMP MINING LOGGING CAR On30 Scale mint
BINKLEY KIT BUILT HOn3 NARROW GAUGE COLORADO NORTHERN CN ORE WAGON
BINKLEY KIT BUILT HOn3 NARROW GAUGE DSPPRR DENVER SOUTH PARK REEFER BOX CAR 605
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 3145 n
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd
ay71 05 10 x Utz FAMA Roco alpinline Gauge 0 M DC 90 5117 Compensation