Coloma-Lotus Calendar - Calendar of events for the Coloma-Lotus area, including Marshall Gold Discovery State Historic Park. - http://www.coloma.com/calendar/
El Dorado County Events Calendar - From the El Dorado County Visitors Authority, an extensive listing with links to websites where applicable. - http://www.visit-eldorado.com/events.html
El Dorado County Events - Extensive listing maintained by Around Here magazine. - http://www.aroundheremagazine.com/community.html