The horseshoe pass is a mountain pass in denbighshire north east wales it separates llantysilio mountain to the west from cyrn y brain to the east this route dates from 1811 when a turnpike road was constructed across the area the road is frequently closed in winter due to snowfall or landslides it is 6100 meters long with a 20 percent gradient artwork copyright push merchandising ltdt shirt design reads horseshoe pass twenty percent six thousand one hundred metersour crew neck short