A century later the whiskey flows again
During Prohibition, only a select few knew about the basement bar below Boulder called the Flatiron Club — a place where whiskey flowed like water, the lights stayed low, and discretion wasn’t just expected—it was required. It operated in secret until a late-night raid by the Feds ended things abruptly. Lately, however, whispers have begun to circulate that the Club has reopened somewhere beneath Mount Sanitas.
Low light. A proper pour. Built for small gatherings—where the conversation matters more than the clock.
Prohibition-era Cocktails
With A Boulder Twist
Flagstaff Fashioned
During Prohibition bottles of mountain rye arrived young, sharp, and unrefined. Lore has it that gold miners simmered tender spring spruce tips collected on the slopes of Flag staft with sugar to tame the edge. The result carried the scent of the foothills into the glass.
Linden Lion
Born during Prohibition, this whiskey-forward cousin to the Negroni is balanced and quietly powerful. Its bitterness arrives with precision, its structure controlled and composed like the mountain lions that glide down Linden Ave. after dark — intelligent, patient, unseen until they choose to be.
Sanitas Sour
Mount Sanitas has always rewarded those willing to climb above the grid of town. During the 1920s, flasks were rumored to accompany ascents, where perspective widened and rules loosened. Whiskey cut with lemon proved bracing and practical — direct, bright, and suited to clear air and long views.
Mapleton Martini
Mapleton Avenue has long been Boulder’s most respectable address, but when the nation went dry, restraint along Mapleton was largely architectural. Behind closed doors gin was stirred cold and poured with a twist.
Flatiron 75
The Flatirons have long stood watch over Boulder — defiant and impossible to ignore. This cocktail mirrors their ascent. Gin steadies the base, lemon sharpens it, and the bubbles are effervescent and fleeting, like the last light catching the face of the weathered rocks before night settles over town.
Boulderado Fizz
When the Boulderado opened in 1909, its lobby bar was the place to be — laughter rising above the hum of debate and deal-making. During Prohibition, the bar fell silent, but the action simply moved below to the basement catacombs where bright gin fizzes carried the festivities forward.