Although the race requires orienteering between checkpoints, and your route may vary, the below map should give a rough idea of the course.
The Check Points (CP’s) are detailed within the Rules section.
Below are links to the recommended maps –
OS Map of Snowdon | Explorer OL17 Map | Ordnance Survey Shop
OS Map of Snowdon – Caernarfon | Landranger 115 Map | Ordnance Survey Shop
Snowdonia North: Snowdon, Glyders Carnedds Map (harveymaps.co.uk)
Snowdonia North Ultramap (harveymaps.co.uk)