From the
A1 motorway, take the 'Firenze Certosa' exit; take the Florence-Siena
superstrada towards Siena and exit at Colle Val d'Elsa. Just before
entering Colle val d'Elsa Volterra is signposted to the right. Take
this road and follow it straight (as staight as a tuscan road can be)
to Volterra (25km).
Download
a sheet of directions and a map... (pdf file, 600k)