Dictionary.com
Thesaurus.com

galamseyer

American  
[guh-lam-see-er, -say-er, ga-luhm-] / gəˈlæmˌsi ər, -ˌseɪ ər, ˈgæ ləm- /

noun

plural

galamseyers
  1. a person who engages in the practice of galamsey; an illegal gold miner.