1884 : Brown Trout Introduced In Lake County Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: April 11, 2018 all-day Repeats 2018-04-11T00:00:00-04:00 2018-04-12T00:00:00-04:00 On April 11, 1884 the first effort in the country to introduce brown trout took place in Lake County. The 4,900 fry came from Germany, and took hold in Michigan’s waters. Source: Michigan Every Day