A7 is a

motorway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms i ...

( freeway) in Portugal. It connects Póvoa de Varzim to Vila Pouca de Aguiar, its main purpose was to give a fast access to the shoreline by inland cities, such as

Guimarães Guimarães () is a city and municipality located in northern Portugal, in the district of Braga. Its historic town centre has been listed as a UNESCWorld Heritage Sitesince 2001, in recognition for being an "exceptionally well-preserved and a ...

and Vila Nova de Famalicão, thus a toll is applied. Construction of this motorway started in 2001 and known as ''EIA - A7/IC5 - Lanço Póvoa de Varzim/ Famalicão'' which affected three archaeological sites, two of which protohistoric: Castro de Argivai in Póvoa de Varzim (a probable protohistoric farmhouse), the surrounding archeological area of Cividade de Bagunte (a protohistoric city) and Quinta dos Cavaleiros (a villa related to Nuno Álvares Pereira and in the dominium of the counts of Cavaleiros), both of the later in Vila do Conde's countryside. Possible existence of prehistoric tumuli were surveyed but delivered no results. One of the most affected sites was ''Castro de Argivai''. During construction in 2002, ceramics and ruins of walls surfacedCastro de Argivai
- Portal do Arqueólogo

References

Motorways in Portugal {{Portugal-road-stub