This hiking guide by Erik Molvar includes more that 850 miles of trails which must be hiked on the approaches to Glacier's summits.
This guide rates hikes from easy to strenuous and also includes detailed descriptions of total miles, elevation loss and gain, topo map references as well as detailed maps from the trailhead to the objective. Another unique feature is the key points along the trail.
This guide covers all the areas in the park as well as Waterton.
Where To Buy:Currently listed for sale at Amazon for $10.85.