After his third prison term, Miner moved to the province of British Columbia in Canada, where he adopted the pseudonym George Edwards and is believed to have staged British Columbia's first-ever train robbery on September 10, 1904 at Silverdale about 35 km east of Vancouver, just west of Mission City.
It is often claimed that Miner was the robber, but neither he nor his accomplices were ever tied conclusively to the botched Silverdale heist. It is also widely reported that Silverdale's train robbery was the first in Canada, but Peter Grauer's definitive study ("Interred With Their Bones", 2005) cites a train robbery in Port Credit, Ontario 30 years prior as the first.
Miner was eventually caught after an aborted payroll train robbery near Kamloops at Monte Creek (then known as "Ducks"). He and his two accomplices, Shorty Dunn and Louis Colquhoun, were located near Douglas Lake, B.C. after an extensive manhunt. When found, Miner apparently surrendered to the arresting officers with his customary courteousness, but Dunn attempted to fire at police and was himself shot (in the foot) during the arrest.
Miner's arrest and subsequent trial in Kamloops caused a media spectacle. Upon his conviction, he, Dunn and Colquhoun were transported by train to the provincial penitentiary in New Westminster. By that time, Miner's celebrity status had risen to the point that the tracks were reputedly lined with throngs of supporters, many of whom expressed satisfaction with the fact that someone had taken the very unpopular CPR to task.
After serving time in the B.C. Penitentiary Miner escaped and was never recaptured in Canada. It is presumed that he moved back to the US, becoming once again involved in robberies in the South. There, he served more prison time, and escaped again.
Miner's time in BC propelled his celebrity there in many ways since. BC restaurant chain, The Keg Steakhouse & Bar, have named drinks and their famous Billy Miner Pie after the train robber. Their early decor also showed many photos of Miner. A mural depicting Miner's robbery near Monte Creek is being painted on the exterior south wall of Cactus Jacks Saloon & Dance Hall located in the building at the corner of 5th Avenue & Lansdowne Street in Kamloops, BC.
Maple Ridge BC. features the Billy Miner Pub which is located in historic Port Haney on the bank of the Fraser River. The Pub is located in the original Bank Of Montreal building built in the early 1900s
Some speculate that Miner left a hidden cache of loot in the forests south of Silverdale after the first robbery. Some believe he used these funds to fund his escape, while others surmise that there is still hidden loot to be found there.
Miner was the subject of the 1983 Canadian film The Grey Fox, in which he was played by Richard Farnsworth. Miner is buried in Memory Hill Cemetery in Milledgeville, Georgia.
Miner escaped in death as well. It was discovered several years ago his headstone was in the wrong location and name spelled wrong. A new headstone was put in correct spot and spelled correctly. The old one was kept where it was.
Mount Miner near Princeton, formerly Bald Mountain or Baldy, was re-named in Bill Miner's honour in response to a motion by the Princeton Board of Trade in 1952. Miner had lived on the ranch owned by Jack Budd, which was on the other side of this mountain from Princeton, while planning the robbery at Duck's.