There is ample (paid) parking at the foot of the trail and the start of the route is clearly signposted, so logistics are simple enough. Once underway, it's a tough climb up a series of zig-zags to the famous M. The angle doesn't relent much so keep on grinding and you should be up in about 20 - 30 minutes.

The M itself is pretty huge when you see it close up, and is made from concrete which has then been painted white. The view is excellent and allows you to pick out the various Missoula landmarks, including the football stadium, next to which the trail began. There's also a handy information board outlining what the various buildings around the city are.

To carry on up to Mount Sentinel, go around the northern edge of the M and then head south on the Sentinel Fire Road. Upon reaching a junction, branch off left and begin the tough climb up to the Pengelly Ridge Trail. All the way up the climb you can hear the hum of city life going on below you, but as you crest the blunt ridge and enter the forest, a sudden, almost jarring silence descends. Enjoy the peace as you swing round on a good trail and finish your ascent to the top of Mount Sentinel.

When you've spent some time admiring the view, begin the scenic and efficient descent down the mountain's north-western "Hellgate" ridge. The descent is steep enough that you need to keep concentrating all the way own - pick your view-observing moments carefully!