|[ Sizes: Orig | Med | Small | Thumb ]|
The red curve shows the traditional route to South Sister via the Old Mill Campgound. Take the Old Mill turn-off and park just inside, before the fee gate. Walk the paved road west till you it turns left, and continue straight on the well-groomed gravel path. Leave the gravel path and follow either the red line to the ridge, or the purple line for a steeper ascent.