Local materials were selected throughout, for example Scottish Oak used for the cladding and sliding glass doors came from a small timber mill less than 20 miles away.

But the biggest culprit was the Edwards Dam — a small stone-and-timber structure built in 1837 for hydropower generation that blocked the fish from reaching their spawning grounds.

Often, there is habitat loss from deforestation, either for farming or timber, and that leaves the animals living on small patches of land.