Gaze across the St. John River from Fredericton’s south side and your eyes might lock on a towering tree cresting the horizon. “What is the deal with that massive tree?”  …The tree is a massive white pine and can be easily seen from the Princess Margaret Bridge, sections of the University of New Brunswick campus and the Dr. Everett Chalmers hospital. …Alders and spruce trees are growing up in the area, but all are dwarfed by this single pine, which a forester says is likely between 100 and 200 years old. …When the surrounding forest was cut down years ago, it’s likely the giant white pine was left standing to usher in a new forest. “Often we leave those trees there to pass on seed to the next generation,” said Jasen Golding, a professor of forestry at the University of New Brunswick.