There are lvl 50 nodes for botany and mining just south of town in corethas west. Botany is cedar branch and cedar log. Mining is dragon obsydian. They give about the same do as northern thanalan and the points, although ther are 6 of them, are way spread out. I would recommend just gathering them once then return to NT ( mining) and ST (botany) till you hit 51. Then return to corethas west.