As we tore down the panelling to begin our reconstruction project at Summit Carrollton, the dust, chalk and God-knows-what-else from the past 22 years came pouring out of the gym's walls, like smoke from the microwave after you accidentally nuke a fork. (Similes are not my strong suit.) Besides giving us the anticipation of potential future lung problems, the dust brought with it some very strong feelings of nostalgia from a lot of us who have been climbing at this old climbing gym for the past few years. This gym — now Summit, but formerly Exposure — is one of the oldest climbing gyms in the state, as well as the country. A lot of people have graced its walls, (Climber Jack Mileski, who coined the term "beta," actually got his start at Exposure back in the day), and it's seen many, many changes throughout its 22-year history in the Dallas area.