In the second half the 19th century all of the following were found in the New West expect what?

Gold has been found in every state, but California became a state because of the gold discovered there. California was a military conquest, but when gold was discovered, the army wanted to be rid of the responsibility, so it became a state. Iron is found everywhere. Nevada is famous for The Comstock Lode, a silver mine so big it cut the value of silver from 1/20 ounce of gold to 1/100 ounce. Bronze is not found, it is made.

Read a book so you know things like this. Everybody expects you to know a few things.