Don't worry about the C&R chastisings. You didn't do anything wrong. Browns aren't even native to the United States...let alone the Eastern Sierras.
There is some differences of science-fact as to the nativity of Greman Browns. Some facts point to Ireland while other scientists insist they originated in New Zealand. But the one fact they agree on is Browns were originally sea trout that became landlocked hundreds of thousands of years ago as those islands rose and the ice from the ice age melted away.