From highway 58 at milepost 38 take the right signed exit hillscreek/kitson springs drive .7 miles to fork in the road stay to left fork and drive 2o miles on road #23 until you reach vivian lake trailhead. From the trailhead Hike northeast eight tenths of a mile till you reach Notch lake. Just beyond the lake the trail splits, take the right veering trail. It is the Mt yoran trail. Follow this trail approximatly 3.3 miles to the shores of divide lake. Walk another six tenths of a mile south east to divide pass to access the route. Access from the east side is by way of the pacific crest trail. From willamette pass along the P.c.t. it is 6.5 miles to divide pass. from Emigrant pass in the south follow the P.C.T 9.8 miles to divide pass.
The south ridge route is straight forward from Divide pass hike north on the open exposed ridge of the mountain. It"s approximatly three tenths of a mile to the summit. The route consists of loose dinnerplate scree very loose and stays just below the ridge proper until the last fifty yards are so were you want to be mindful of the exposure along the west and north sides of the mountain. The view is spectacular well woth the effort.
A hard helmet and walking sticks are a good idea during the summer and fall. An Ice axe, crampons and snow shoes in The spring. I have not been here in winter time. seems a bit extreme. Ice axe, crampons,snowshoes and a rope with a partner would be highly reccomended.