This is the most interesting route to mountaineers to climb Puy Mary. If you only want to visit the summit you can walk the shortest route from Pas de Peyrol.
See the main page to approach to Super-Lioran.
You can begin in Super-Lioran (1.200m) or in the Col de Font de Cère (1.289m). Both ways are painted as GR400 reaching col de Rombière (1.500m). Some meters before of the col you has in a small col (1.450m) the path to Puy Griou (1.690m) signalled as GR400 variation if you want to climb this peak in the ascent or in the descent of Puy Maty.
The path reach Col de la cabre (1.528m) with two options. You can climb Puy Peyre Arse (1.806m) or you can walk under the summit following the GR400. In both cases you reach the ridge in a small col (1.600m). The path goes just over the wide ridge to reach the famous Bréche de Rolland without complications to reach a new col (1.622m) just under the ridge SE of Puy Mary. The paint GR400 goes as well to the summit with a variation directly to the Pas de Peyrol from this point. The easier is to reach the summit following the narrow path in the grassy spun.