Bill Hao made an Ultra Large Format Camera(32X48inch)and using Wetplate Collodion Process take picture on huge glass plate.He converted a 50 seats tour bus into an off grid mobile darkroom because this process requires immediate development after exposure.He has photographed the Rocky Mountains hundreds of times over the past decade,his works may last for two hundred years,but some landscapes may not,they are disappearing and face severe damage from wildfires, melting glaciers,and tourism pressures.Bill Hao used the oldest form of photography to warn the world to protect the precious natural.