GreatSmokyNPS
@GreatSmokyNPS
Official Twitter feed of Great Smoky Mountains National Park, America's most visited national park.
31-10-2014 20:24:28
3,0K Tweets
122,0K Followers
323 Following
Phenology, the study of the seasonal changes in the life cycles of trees and plants, is one way to determine when spring has arrived at the park! Collected over time, observations about cyclical changes give us a great look at long-term trends.
#HappyFirstDayofSpring