It is on the southern secondary ridge of the Serra di Tenda, hinging at the level of the 1,372 metres (4,501 ft) Monte Tassu and oriented to the east then to the northeast until the Lancone gorge.

[1] In an immediate environment, the section of the mountain range separates two valleys: The Col de Bigorno is subject to strong north and north-westerly winds (mistral and tramontane trains).

In 1732, at the end of April, the imperial German troops stationed at Saint-Florent, led by Samuel von Schmettau, occupied the Nebbio then the coast to Tenda and Lento.

[7] In 1739, the count of Maillebois, at the head of the French troops of Corsica, began a campaign and decided to bear arms in the mountainous cantons of the interior.

Maillebois left Bastia and made his base in Costere (Campitello) where, after Tenda and Bigorno, Lento, held by Ghjacomu Paoli, capitulated on 3 June.

On 1 May 1769 Pasquale Paoli, who had established his headquarters in Murato, had his Corsican militias occupy the heights of Tenda which controlled the valleys of Aliso, Ostriconi and Golo.