It is possible to reach Glacier Lookout on foot. But this hike is not for everyone. Lost Toque Trail takes you up to the alpine of West Peak. The hike takes 2.5-3.5 hours for most people to reach the alpine. The hike back to Glacier Lookout is not as strenuous as Lost Toque Trail but it still takes another 2.5-3.5 hours to reach.
The last 500-600ft of elevation of Lost Toque Trail prior to the alpine, is a straight approach. The first 400ft of the approach is not too difficult as it goes through the alders and there are handholds, but it is steep. The last stretch goes though grasses that may be slick in dry times.
Lost Toque Trail is hikeable Mid-May through Early October.