Figure 1. View of the Tynwald site looking east, said to have been drawn by Captain Francis Grose in 1774 (after Harrison 1871). 

Figure 2. Plan of the Tynwald by Captain Francis Grose, said to have been made in 1774 (after Harrison 1871). 

Figure 3. First Edition Ordnance Survey map of St John's Plain (1867) 

Figure 4. Plan of the Tynwald and St John's Plain based on the 1993 survey (Darvill 1996, Figure 16) 

Figure 5. Phase 1 - provisional reconstruction (from Darvill 1996, Figure 52)

Figure 6. Comparative plans of later prehistoric ritual enclosures. Reproduced from Darvill 1996, Figure 53, from various sources.