Rugged.
it has mostly rugged grounds and mountainous
Sharing the coastline with rugged cliffs are scores of dazzling white sand beaches.
Rugged- Having a bumpy, battered uneven surface. "Despite the rugged coastline, the view and beauty was stunning."
its important becaus they need to trade things with other people and countries
The coastline in Northern California is a beautiful sight.The coastline continues to shrink from erosion.
Look in Book The further North you go the more rugged the coastline gets.
A regular coastline is smooth with very few natural harbors
i don't know that's why I'm asking you
The rugged coastline dotted with lovely lighthouses attracts many.
découpé (for coastline, road etc) rude (for person, character, lifestyle)
This part of the coastline is badly eroded, due to the violent storm we had last week. I just love to see the coastline at sundown.