RG engine 340 appears to have already returned to Knott’s Berry Farm by late June 2026, with multiple June 2026 posts saying it was “back home” at Knott’s and earlier reports describing its temporary home-rails trip in Colorado before heading back to California.

What the latest reports show

  • A June 27, 2026 post says, “Engine 340 is back home at Knott’s Berry Farm!”
  • A June 16, 2026 forum post says it was “returns to Knotts,” with testing expected soon after
  • A June 2026 railfan report said the locomotive would head home to Knott’s after its Colorado excursions

Likely timing

Based on those reports, the best answer is that 340 returned in late June 2026 , likely around June 27, 2026, after finishing its Colorado runs and testing phase.

Context

The locomotive had been in Colorado for restoration and a short series of home-rails excursions before going back to Knott’s Berry Farm, so the return was part of a planned sequence rather than an unexpected move.

Would you like a tighter timeline of the 340 restoration and return dates?