The Big Blowup of 1910 is what got our forests started down the unhealthy path. You are now seeing what 100 years of fire suppression has done. Mature Pondo pine should have 20-40 mature stems per acre. Now we have areas up over 2000. Lodgepole was designed by Mother Nature to be total stand replacement every 100-300 years. Now we just let beetles kill it.