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 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 28m
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 17m
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 8m
RIO GRANDE MODELS DRGW WATER CAR 0470
RIO GRANDE MODELS DRGW WATER CAR 0470
$25.00
Time Remaining: 3d 15h 41m
Buy It Now for only: $40.00
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: 5d 22h 2m
Buy It Now for only: $69.95
ON30 Spectrum Roaring Ridge Train Set 25014 Denver  Rio Grande western
ON30 Spectrum Roaring Ridge Train Set 25014 Denver Rio Grande western
$140.00
Time Remaining: 5d 22h 12m
Buy It Now for only: $190.00
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: 7d 13h 23m
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
$71.66
Time Remaining: 8d 4h 8m
Buy It Now for only: $71.66
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
$71.66
Time Remaining: 9d 4h 13m
Buy It Now for only: $71.66
Rio Grande Models 3030 DRGW Idler Flat For Derrick OP Kit
Rio Grande Models 3030 DRGW Idler Flat For Derrick OP Kit
$29.95
Time Remaining: 9d 9h 43m
Buy It Now for only: $29.95
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: 11d 11h 17m
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: 12d 13h 9m
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: 18d 9h 31m
Buy It Now for only: $49.95
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: 21d 11h 2m
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
$71.61
Time Remaining: 22d 3h 48m
Buy It Now for only: $71.61
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: 22d 19h 58m
Buy It Now for only: $69.95
RIO GRANDE MODELS DRGW AIR DUMP GONDOLA
RIO GRANDE MODELS DRGW AIR DUMP GONDOLA
$25.00
Time Remaining: 23d 1h 36m
Buy It Now for only: $25.00
Durango Press 59 HO Denver  Rio Grande Western Water Tower HOn3 Kit
Durango Press 59 HO Denver Rio Grande Western Water Tower HOn3 Kit
$52.99
Time Remaining: 29d 19h 27m
Buy It Now for only: $52.99

Other On30 Scale train items recently purchased through this site:

Rio Grande K 27 2 8 2 steam loco Japan Westside BRASS HOn3 Narrow Gauge H953
Bachmann On30 Denver Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
RIO GRANDE MODELS DRGW WATER CAR 0470
Bachmann On30 Denver Rio Grande Western 136 Black Green 2 6 0 25242
HOn3 United DRGW Narrow Gauge Passenger Cars Brass Imports Rio Grande 5 cars
RIO GRANDE MODELS DRGW AIR DUMP GONDOLA
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
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
Rio Grande Models 3030 DRGW Idler Flat For Derrick OP Kit
Durango Press 59 HO Denver Rio Grande Western Water Tower HOn3 Kit
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 315 nd
ON30 Spectrum Roaring Ridge Train Set 25014 Denver Rio Grande western
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 3145 n
HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit