Oh, dear. Ji’an railway station is very far from the Jinggangshan Mountain. Ji’an Railway Station is in Qingyuan District of Ji’an, while Jinggangshan Mountain is in Jinggangshan City administered by Ji’an City. You may go to Jinggangshan City from Ji’an by train. Jinggangshan City is about 91 kilometers from Ji’an by railway. It takes more than one to get to Jinggangshan by train. Upon arrival at Jinggangshan railway station, you can find a bus to go to Ciping. Ciping is one of the scenic areas of the Mt. Jinggangshan. Honestly speaking, the Mt. Jinggangshan is very beautiful. But it’s too large and includes many scenic spots. I suggest you find a package tour, which can take you to visit the mountain.