38 How? The Taula del Sénia Commonwealth carried out an extensive inventory to map the number and characteristics of ancient olive trees in the area. As a joint initiative, the Commonwealth and the Sénia Territory Association, from 2009 to 2013, developed the four-year pilot project ‘Oil and ancient olive trees, the engine of sustainable development in the Territorio Sénia’. This project was the starting point for other related projects to support tourism, entrepreneurship and employment in the years to come, under the umbrella of the ‘Ancient Olive Trees of the Territorio Sénia’ initiative. Historical oil mills were restored as museums and as a point of sale for olive oil. Areas for visitors were also developed. The property owners, oil mills, and gastronomy and tourism actors that consume and promote the certified olive oil signed agreements for cooperation. Management The project is led by the Taula del Sénia. Representatives from the private sector (landowners, mills, restaurants, tourism) are closely involved through the Sénia Territory Association. Volunteers and the local community contribute to activities. The 27 municipalities, the provincial councils of Catalonia, Valencia, Castellón, Tarragona and Teruel, as well as the national administration, support the initiative financially.