Stone Wall
noun
A stone hedge is a wall (hedges are nice walls), but it's made of stone. It's a stone wall.
The reading is the readings for 石 and 垣 combined into one word. Be careful of the rendakus.
彼は義足を付けていたので、石垣を乗り越えられませんでした。
He couldn’t climb over the stone wall because he has artificial legs.