Mother Nature is amazingly resilient.  Our stroll along the fireweed nature rail loops gives us another look at how the wild has recovered from massive wildfires in 2003.  Lodgepole pine with a thick understory for the first century then Engelman spruce that have slowly grown in the lodgepole shade take over and crowd them all out.  Fire can interrupt at any time and it all starts over again.  Forests chart change in centuries, amazing and a bit dwarfing for mere mortals.