Mother Earth Brewing Company (California & Idaho): Four Seasons: Spring, Summer, Autumn, Winter

Official description from the brewery:
The Four Seasons of Mother Earth is the top-tier of our beer program. Mostly barrel-aged, limited production, and exclusive distribution ensures the integrity of these unique, sought after concoctions. Occasionally collaborations with like-minded breweries are featured to provide a fun and creative outlet for our brewers that lead to special (and often impossible to recreate) handcrafted ales. This is the crème de la crème of our catalog.