But the only place that I know of that sells Alterra downtown is Barriques Market in the old Loraine Hotel at the corner of Fairchild and W. Wash . And that place is kind of a mess. It is not entirely clear where the line to order starts - sometimes it is to the right, sometimes it is down an aisle, the space is entirely too cluttered, and while I can forgive both of those things, it is also SLOOOOOOOOW. But the lattes are awesome, and I love Alterra, and it is convenient, so I will certainly keep going there.
And thank you to EmWi for the gorgeous photo that I lifted from flickr. Isn't it pretty?