If you are only interested in Mount Cornwall there is a more direct way to approach it. The route described here is a traverse from Outlaw Peak to Mount Glasgow.
From the Little Elbow Recreation Area parking lot, follow a trail that goes along the river in the upstream direction. In 200-300 meters, a large pedestrian bridge is reached, where you want to cross. Follow the biggest trail that curves sharply left and follows the river downstream, however soon heads off south, in the correct direction. There are many small trails here, just keep to the largest one, Big Elbow Trail on the maps. This is a mostly flat road and you really want to be on a bike, if not doing the full traverse.
Follow along this road for approximately 15km. After the first 10km or so, there are two wooden bridges that you want to make note of - after crossing the second bridge, in a kilometer or less from this point is your turn-off. The trail gains a steep incline and there is a small branch on your right (big cairn here in 2005). This branch will take you to the Banded/Outlaw col. From here follow you need to gain Outlaw Peak and Cornwall is on the other side.
Once on the col between Outlaw Peak and Mount Cornwall, you ascend the south ridge to the summit. It is a wide highway, simply walk to the summit (no register in 2005).
Once on the summit, Glasgow will be in full view on the other side and if you're planning on it, it's a good idea to study the route from here. Descend by following the north ridge and shortcut down the scree, picking the shortest line towards the Glasgow col.
Alpine axe, hiking poles (for scree), gaiters
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