From Monêtier-les-Bains, take the D1091 towards the Col du Lautaret as far as the Pont de l’Alpe.
Park in the car park on the right-hand side of the road. Spaces are in high demand during the summer, so set off early.
(S/E) From the car park, walk down the road a few metres, cross the Torrent du Rif bridge, then head east along the wide path beneath the Aiguillette du Lauzet.
After a few bends, this path turns north and opens out into a wide valley, leading to the hamlet of Alpe du Lauzet.
Once you have passed the hamlet and reached the end of the valley, take the path on the left and cross the bridge.
(1) At the sign for Côte Pacard, take the path on the right.
The path climbs through the pastures, following the course of the Plan Chevalier stream.
After a steeper climb with tight hairpin bends, it reaches a pass equipped with a cable-assisted crossing leading to the Verrou du Grand Lac.
(2) Descend and then go round the lake to the right.
(3) From its north-eastern end, take the path to the right which climbs northwards up a valley where a stream flows. This path, which is not shown on the map, heads north-north-west, following the course of the stream.
Cross the stream just as it bends 90° to the right, then continue off-trail in the same direction.
(4) Cross a second stream to join a mountain pasture track.
This path climbs across the terrain in the same direction, then turns west for a distance of 100 metres before heading south-west and then south.
The path leads onto a vast rocky plateau beneath the Tête de Colombe and the Pic de la Ponsonnière.
Cross this plateau heading south.
Ahead of you stand the Roche Colombe and, to its right, its secondary summit.
Climb the gully to the left of the secondary summit.
This leads onto a second rocky plateau where there is a neat cairn.
(5) Head south-east to reach the base of the summit bastion.
(6) Follow the path and, after a steeper climb, reach the summit.
(7) Return in the opposite direction via the same route to the car park (S/E)