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

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: 1d 9h 32m
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Flanger 01 Kit DP 51
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Flanger 01 Kit DP 51
$29.79
Time Remaining: 2d 16h 4m
Buy It Now for only: $29.79
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN OUTFIT CAR 01789
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN OUTFIT CAR 01789
$69.95
Time Remaining: 2d 16h 59m
Buy It Now for only: $69.95
Built O On3 Rio Grande Section House American Models Laserkit
Built O On3 Rio Grande Section House American Models Laserkit
$165.00
Time Remaining: 3d 12h 39m
Buy It Now for only: $165.00
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
$69.95
Time Remaining: 4d 8h 21m
Buy It Now for only: $69.95
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
$73.03
Time Remaining: 4d 23h 6m
Buy It Now for only: $73.03
On30 Scale Denver  Rio Grande Western 2 8 0 345 by Broadway Limited
On30 Scale Denver Rio Grande Western 2 8 0 345 by Broadway Limited
$229.99
Time Remaining: 5d 6h 7m
On30 Scale Denver  Rio Grande Western 2 8 0 278 by Broadway Limited
On30 Scale Denver Rio Grande Western 2 8 0 278 by Broadway Limited
$229.99
Time Remaining: 5d 6h 7m
On3 On30 O CRAFTSMAN RAGGS RIO GRANDE SOUTHERN PLACERVILLECO DEPOT KIT NEW
On3 On30 O CRAFTSMAN RAGGS RIO GRANDE SOUTHERN PLACERVILLECO DEPOT KIT NEW
$329.95
Time Remaining: 5d 14h 55m
Buy It Now for only: $329.95
Sn3 S CUSTOM BUILT DENVER  RIO GRANDE WESTERN DEPOT  FREIGHT HOUSE AT CHAMANM
Sn3 S CUSTOM BUILT DENVER RIO GRANDE WESTERN DEPOT FREIGHT HOUSE AT CHAMANM
$389.95
Time Remaining: 5d 14h 55m
Buy It Now for only: $389.95
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 315 nd
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 315 nd
$73.03
Time Remaining: 5d 23h 11m
Buy It Now for only: $73.03
Bachmann On30 Denver  Rio Grande Western 136 Black  Green 2 6 0 25242
Bachmann On30 Denver Rio Grande Western 136 Black Green 2 6 0 25242
$129.99
Time Remaining: 8d 6h 15m
Buy It Now for only: $129.99
Bachmann On30 Denver  Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
Bachmann On30 Denver Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
$255.99
Time Remaining: 9d 8h 6m
Buy It Now for only: $255.99
On3 On30 WISEMAN RIO GRANDE SOUTHERN MODEL T FORD INSPECTION CAR 1 KIT SSLTD
On3 On30 WISEMAN RIO GRANDE SOUTHERN MODEL T FORD INSPECTION CAR 1 KIT SSLTD
$49.95
Time Remaining: 15d 4h 29m
Buy It Now for only: $49.95
RIO GRANDE MODELS DRGW FLANGER
RIO GRANDE MODELS DRGW FLANGER
$28.00
Time Remaining: 15d 16h 55m
Buy It Now for only: $28.00
RIO GRANDE Chasing the Narrow Gauge Volumes I  II  III By Robert W Richardson
RIO GRANDE Chasing the Narrow Gauge Volumes I II III By Robert W Richardson
$250.00
Time Remaining: 15d 17h 1m
Buy It Now for only: $250.00
RIO GRANDE MODELS DRGW WATER CAR 0470
RIO GRANDE MODELS DRGW WATER CAR 0470
$28.00
Time Remaining: 15d 17h 5m
Buy It Now for only: $28.00
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
$149.95
Time Remaining: 18d 6h
Buy It Now for only: $149.95
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 3145 n
$73.03
Time Remaining: 18d 22h 45m
Buy It Now for only: $73.03
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
$69.95
Time Remaining: 19d 14h 55m
Buy It Now for only: $69.95
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Plow Flanger Kit DP 42
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Plow Flanger Kit DP 42
$54.79
Time Remaining: 25d 16h 35m
Buy It Now for only: $54.79

Other On30 Scale train items recently purchased through this site:

RIO GRANDE MODELS DRGW WATER CAR 0470
RIO GRANDE MODELS DRGW FLANGER
On30 Scale Denver Rio Grande Western 2 8 0 345 by Broadway Limited
RIO GRANDE MODELS DRGW AIR DUMP GONDOLA
RIO GRANDE Chasing the Narrow Gauge Volumes I II III By Robert W Richardson
Bachmann On30 Denver Rio Grande Western 136 Black Green 2 6 0 25242
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN OUTFIT CAR 01789
On3 On30 WISEMAN RIO GRANDE SOUTHERN MODEL T FORD INSPECTION CAR 1 KIT SSLTD
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Plow Flanger Kit DP 42
Bachmann On30 Denver Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
Built O On3 Rio Grande Section House American Models Laserkit
On30 Scale Denver Rio Grande Western 2 8 0 278 by Broadway Limited
Durango Press 59 HO Denver Rio Grande Western Water Tower HOn3 Kit
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
Sn3 S CUSTOM BUILT DENVER RIO GRANDE WESTERN DEPOT FREIGHT HOUSE AT CHAMANM
On3 On30 O CRAFTSMAN RAGGS RIO GRANDE SOUTHERN PLACERVILLECO DEPOT KIT NEW
HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Flanger 01 Kit DP 51
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 315 nd
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd