randonnée lac d'astarac aussos 340.7 338.2 336.6 337.8 340.9 295.4 254.3 260 262.4 260.4 272.6 257.3 271.4 260.9 258.3 269.4 261.9 264.5 272.9 272.5 268.9 258.1 261.9 266.8 268.4 262.9 258.4 280.1 292.5 316.5 315.3 313.8 312.7 340.7