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

O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
$89.95
Time Remaining: 1d 10h 32m
Buy It Now for only: $89.95
Bachmann On30 28 ton Two Truck Class B Climax Colorado Mining Co
Bachmann On30 28 ton Two Truck Class B Climax Colorado Mining Co
$275.00
Time Remaining: 4d 9h 26m
Buy It Now for only: $275.00
Bachmann On30 Rail Truck w ACC DCC Colorado Mining Co NIB
Bachmann On30 Rail Truck w ACC DCC Colorado Mining Co NIB
$250.00
Time Remaining: 4d 22h 8m
Buy It Now for only: $250.00
Bachmann On30 Scale Train Logging  Mining Cars V Dump Cars 3 per box 29802
Bachmann On30 Scale Train Logging Mining Cars V Dump Cars 3 per box 29802
$63.65
Time Remaining: 10d 12h 50m
Buy It Now for only: $63.65
Bachmann On30 Midwest Quarry  Mining Co 4 Two Truck Stearns Heisler DCC 28806
Bachmann On30 Midwest Quarry Mining Co 4 Two Truck Stearns Heisler DCC 28806
$278.99
Time Remaining: 13d 11h 33m
Buy It Now for only: $278.99
Bachmann Spectrum On30 Scale Rail Truck Colorado Mining Co DCC
Bachmann Spectrum On30 Scale Rail Truck Colorado Mining Co DCC
$159.00
Time Remaining: 13d 16h 1m
Buy It Now for only: $159.00
Bachmann Spectrum On30 Scale Rail Truck Midwest Quarry  Mining Co DCC
Bachmann Spectrum On30 Scale Rail Truck Midwest Quarry Mining Co DCC
$159.00
Time Remaining: 13d 16h 6m
Buy It Now for only: $159.00
Bachmann Spectrum On30 Scale Rail Truck Colorado Mining Co DCC NEW IN BOX
Bachmann Spectrum On30 Scale Rail Truck Colorado Mining Co DCC NEW IN BOX
$155.00
Time Remaining: 19d 6h 26m
Buy It Now for only: $155.00
O SCALE WISEMAN MODEL SERVICES GRAND CENTRAL GOLD MINE INTERIOR KIT On3 On30
O SCALE WISEMAN MODEL SERVICES GRAND CENTRAL GOLD MINE INTERIOR KIT On3 On30
$124.95
Time Remaining: 23d 17h 39m
Buy It Now for only: $124.95
Bachmann On30 29161 Rail Truck Midwest Quarry  Mining Co DCC
Bachmann On30 29161 Rail Truck Midwest Quarry Mining Co DCC
$75.00
Time Remaining: 26d 18h 51m
Buy It Now for only: $75.00

Other On30 Scale train items recently purchased through this site:

Bachmann On30 29161 Rail Truck Midwest Quarry Mining Co DCC
O SCALE WISEMAN MODEL SERVICES GRAND CENTRAL GOLD MINE INTERIOR KIT On3 On30
Bachmann On30 Scale Train Logging Mining Cars V Dump Cars 3 per box 29802
O SCALE On3 On30 WISEMAN MODEL SERVICES LOGGING OR MINING CAMP 4 CABIN SET KIT
Bachmann Spectrum On30 Scale Rail Truck Colorado Mining Co DCC NEW IN BOX
Bachmann Spectrum On30 Scale Rail Truck Colorado Mining Co DCC
Bachmann Spectrum On30 Scale Rail Truck Midwest Quarry Mining Co DCC
Bachmann On30 Midwest Quarry Mining Co 4 Two Truck Stearns Heisler DCC 28806
Bachmann On30 Rail Truck w ACC DCC Colorado Mining Co NIB
Bachmann On30 28 ton Two Truck Class B Climax Colorado Mining Co