Proper noun
ながさきけん
私は長崎県の出身で、家族の墓も全部そこにあります。
I am from Nagasaki prefecture and my family graves are all located there, too.
Long Cape Prefecture. This will make more sense when you look at the reading. Hint: It's Nagasaki Prefecture.
The readings are 長 from 長い, normal 崎 and normal 県.