Carolyn L. Mastin 2013 <p><span>Northwest hikers frequently hand down rich traditions of favorite trails to younger generations. While these multi-generational traditions provide the illusion of landscape permanence, observant hikers often witness geologic change in progress—rockfall, water erosion, and glacier change. You might recognize that your views of mountain landscapes are a little bit different from the views of your grandparents, and what you see will likely be different from what your own grandchildren will eventually see.</span></p> application/pdf en Washington Trails Association Washington's volcanoes: Know your sleeping giants article