66759 Chippy passes Callow Hill on 19 September 2024 with the 4B58 11:43 Colnbrook Lafarge to Avonmouth West Wharf stone empties. Although this left Colnbrook on time, it got progressively later en-route, and was running 65 minutes behind time here. The artificial hill in the background is the Crapper & Sons landfill site.