Luis Ivan Torres Rojas Ivan Torres Rojas من عند Yenicami Mahallesi, Yenicami Mahallesi, 61950 Dernekpazarı/Trabzon, تركيا
This is a good, general introduction to the gold rush. For elementary school I think it works alone and would be all you need (unless you live in California and want to take it further). For middle school you may or may not want to add more. While not super engaging, it lays out what happens in a clear manner. It's not boring, it's just not WOW! We read two books on the gold rush, and I much preferred this one.