When you step foot atop Twin Peaks in San Francisco, you imbibe sweeping views of a thriving metropolis nestled in nature. There are vast swaths of gray hugged by adjacent seas of green and blue. It’s not Brooks Range-esque wilderness, but as Bill Cronon professes, “what brought each of us to the places where such memories became possible is entirely a cultural invention.” Although I don’t always completely agree with Professor Cronon’s view of a necessarily anthropogenic wilderness – San Francisco undoubtedly stands as living proof that cultural intervention has allowed for these memories to be accessible (my interpretation) to the masses, not the few private property owners. Cultural intervention has also preserved a taste of wilderness, and the home of this unlikely resident of Twin Peaks, the Mission Blue Butterfly. MBB’s fly from about April to May, each year, a reminder of how delicate biodiversity can be, while at the same time celebrating the incredible resiliency of this tiny, ephemeral butterfly.