1. In back of means located behind.
Pattern 1: noun + in back of + noun
There is a beautiful tree in back of our house.
Pattern 2: verb + in back of + noun
Your sister sits in back of me in class.
Most Beautiful Valleys In The World
Neora Valley West Bengal
Neora valley is located in the Kalimpong hills, stillunknown terrain of DarjeelingdistrictinWest Bengal. The journey begins through the widespread lush green tea gardens,rolling hill slopes to the dense forest of Neora valley. Neora valley is one of the virgin wilderness in the country with enchanting streams,astonishing waterfallsand unique species of wild animals. The Neora valleynational parkis known for land of red panda, golden cat,himalayan flying squirrelandclouded leopard.