It is part of the seven districts of Borgomaro, in the province of Imperia and is a tiny village nestled on a hillside of Monte Grande, which divides the valley of the river Impero from the valley of Arroscia. It is a settlement of old cottages and newly built villas arranged in the Valley Argentina, on the main road, reported also in historical documents, that connects between the province of Imperia and the area of southern Piedmont. The territory, in the past just an alpine village is now an important holiday resort, thanks to a particularly favourable location and altitude, its woods full of excellent mushrooms and meadows dotted with flowers of rare beauty that give hints of beautiful colour landscape. The silvery green olive trees give the hill a particular colours, that change with the seasons. The valley of Maro features "le caselle", small square or round buildings of dry stone, created by the shepherds to create a comfortable shelter. The roughness of the territory, the mule tracks, the stone buildings are an expression of a strong rural tradition, of tenacious people who have managed to create advantages and comfort even against all odds. Like the other villages in the valley of Maro, San Bernardo di Conio is known for its production of fine Taggiasca quality olives from which derives a precious extra virgin olive oil to dress excellent gourmet products.
The village, as the whole valley of the river Maro, belonged to the Savoy in the XVI century, who were not indifferent to the strategic location of the town on the main roads. It was merged into the Kingdom of Sardinia at first and in the Kingdom of Italy later.