La Balme-des-Grottes is located some 32 km east by north-east ofLyon and 11 km south ofAmbérieu-en-Bugey on the right bank of theRhône. The Rhône also forms the departmental border betweenIsère andAin. Access to the commune is by the D65 road fromLeyrieu in the south which passes through the length of the commune and the village and continues north to join the D1075 west ofVertrieu. The D52B branches from the D65 in the commune and goes south toSaint-Baudille-de-la-Tour. The D52C also branches from the D65 at the same intersection and goes south-east toCharette. The commune is mixed forest and farmland with dense forests in the north-east.[3]
TheRhône river forms the entire western border of the commune with no crossing points anywhere in the commune. The commune is covered by a network of canals linked to the Rhône and theRuisseau de Laye which is a minor loop of the Rhône.[3]
From about 4000 BC,Neolithic farmers colonised the region leaving their polished axes, flints, and pots in Louvaresse and Travers. Collective graves and vases have also been found in the cave from that time. It was especially at the end of theBronze Age that they left very important remains (1250-950 BC): numerous tombs with cremation urns and animal offerings have been found in crevices and under boulders in a large part of the cave. It is an underground necropolis of theUrnfield culture notable for its wealth of ceramic vases.[4]
Part of the archaeological material from all eras is displayed in the Heritage House atHières-sur-Amby where it was sent in 1985 by the excavators.
The official status of the blazon remains to be determined.
Blazon: Party per bend sinister wavy, at first Argent a dolphin Azure; at second Vert, an entry to a cave Argent charged with a church proper of 3 levels with the sinister wall mouvant windows open and a slope proper mouvant to dexter, over a path in bend sinister of Azure mouvant to base, with another path in bend sinister proper to dexter mouvant to base, in chief wavy of Azure; at the bend sinister wavy debruised by a bend sinister wavy of Azure charged with 6 ribbands wavy of Argent.
TheTown Hall / School at Route de Lagneu (1882)[11]
TheChateau de Salette (13th century).[12] The remaining buildings of the formerCarthusian monastery of Salette. The facades and roofs of the chateau are from the 19th century. In October 1299 DauphinHumbert I of Viennois founded a monastery for women of which three buildings remain. During theFrench Revolution the monastery was sold and is home for some time to an earthenware factory. The chateau was built around 1870-1880 and preserves some decorations from that time.
TheGrotte de La Balme (La Balme Cave) is one of theSeven Wonders of Dauphiné. It is a formation of an "amphitheatre of small basins". The caves were a hideout forLouis Mandrin. They were visited byFrançois I and contain an apocryphal portrait of him. The caves contain several items that are registered as historical objects: