Artilleriewerk Foppa Grande, Artillery battery in Airolo, Switzerland

Artilleriewerk Foppa Grande (army designation A 8370) is a Swiss artillery work at 1,540 m on the south side of the Gotthard Pass, at the entrance to the Tremola on the old Gotthard road above Motto Bartola. It began as a single-turret work with one large cavern holding ammunition, operating equipment and quarters for 21 beds. A 10.5 cm turret cannon Model 1939 L52 armed it, and in 1961 a 12 cm fortress mortar 1959 was added.

Constructed in 1940, the facility served with a 10.5 cm cannon to defend mountain passages. It was part of Switzerland's broader fortification system designed to monitor national borders during World War II.

The site is a class A Swiss cultural property of national significance, declassified only in June 1997 and restored in 2003 as a historic monument. Visits are possible solely by prior arrangement and for groups, so individuals must join an organised tour. The fortress company III/6 fired its two guns for the last time during a 1994 refresher course.

The site stands at 1,540 meters elevation and is accessible only under certain conditions and along marked paths. Visitors should wear sturdy footwear and bring weather protection, as the terrain is rough and exposed.

A decoy gun turret was built 50 meters from the actual cannon position to deceive potential attackers. This deception was part of a clever defensive strategy to protect the real firing position.