Twenty-one years after opening, St. Paul's Great Waters Brewing Company announced they're closing their doors.

Over the weekend, Great Waters Brewing Company in downtown St. Paul took to Facebook with a sudden, shocking announcement:

It was announced today that we will be closing the doors after serving over 3 Million pints of beer! Our last day of operation will be November 18, 2018."

No reason for closing was given, but it's easy to theorize why -- just too many breweries! According to The Growler, four breweries and brewpubs have opened in downtown St. Paul in the last six years, and a boom in breweries following the 2011 taproom bill has led to over 150 statewide.

Perhaps what makes the news that much harder is the fact that Great Waters Brewing -- The Growler notes -- is St. Paul's oldest brewpub. The brewery's Facebook post adds,

Great Waters opened in downtown St. Paul years before the Xcel Energy Center was built and was one of the first breweries to come along in many years. Since 1997 [the brewery] has been serving a thirsty and hungry public."

Great Waters Brewing's last day will be Sunday, November 18.