Prosecutor Matthew Curtis said Craig Williams, 40, of Cheltenham, parked his Vauxhall Frontera near the 3,560-foot-high summit of Snowdon Sept. 3, 2011, and the vehicle was removed from the mountain Sept. 8 and returned to its owner, Wales Online reported Thursday.
Curtis said Williams' "stubbornness and sheer stupidity got the better of him" and he repeated the stunt Sept. 29, this time leaving a note on his vehicle advertising it for sale on eBay.
Williams admitted driving his SUV up the mountain Sept. 3, but argues someone else drove the vehicle Sept. 29, when it allegedly caused damage to the railway track, The Mirror reported.
Williams is charged with driving dangerously on footpaths and the mountain railway.
"Whichever way the vehicle was driven up it was dangerous. The greatest risk might have been to the defendant himself. The car could easily have slipped, overturned or gone over the edges," Curtis said.