Schneider Aventinus Weizen-Eisbock in Denver?

I typically only see TAP 6, but call TotalBev Westminster or Total Beverage Thornton.

 

The places I would check:

Mondo Vino
Mile High Wine/Spirits
Lukas Liquors
Davidsons
Total Beverage (Westminster)

Those will give a bit of a geographical range for ya. They should have it

 

Nabbed a bottle from parker payless and bubbles in castle rock.

 

Colorado Liquor Mart has it, lots of it.

 

There was a period of time (maybe 4-5 years) where we stopped getting the Eisbock. I think some stores never renewed orders for it. Now we get all of the Schneider beers. Lukas had some last I looked.
Most stores don't seem to carry them, but we even get the large format Tap X bottles on occasion.