metamorphic intrusion in glacier national park

against background backpack band basalt basaltic become change cliff cliffs climate conifers dark darker deep east faces field fires fog foggy forested forests geologic geology glacier gradient has high hike hiking historical history ice igneous intrusion lighter limestone marble metamorphic metamorphosed micro mineral montana national nature overcast overlooking park regrowth rejuvinated rejuvination rockies rocky scale snow solitary solitude stand starkly summer time tourism tourist towering trail travel treeline visible visit vista while