Boucle Grignon départ mairie 587.2 587.2 592.6 595.5 596 603.6 606.5 607.8 612.1 612.9 616.6 618.5 609.9 604.5 596 573.3 566.2 570.1 565.2 558.6 552.7 554.7 546.7 556.2 553.5 455.5 452.7 450.1 446.7 424 406.5 403.6 407 388.6 387.4 388 377.4 381.6 377.6 377.5 358.5 357.1 369.9 371.3 372.1 370.5 369.8 367 366.3 360.2 359.7 359.9 364.1 364.5 362.6 371.4 373.1 369.3 371.7 371.5 372.7