Johnson City Has A New “Brewstillery”. Tennessee Hills Brewing And Distilling Is Open On West Walnut Street. It’s Part Of A Multi-Million Dollar Investment Spanning Three Properties. Founder Stephen Callahan Hopes The Location Can Start Serving Spirits Within The Next Few Months, But For Now, It’s Primarily Offering Beer. Johnson City Announced Recently It Would Be Investing Millions Into The West Walnut Street Project.