On Director's Cut, Geo-Institute Director Brad Keelor interviews G-I members about anything and everything. You might hear about their favorite geotechnical project, their favorite music, or their favorite pie. In Episode 9, Brad speaks with Archie Filshill of Aero Aggregates and the G-I's Delaware Valley chapter. The Geo-Institute is a technical society with about 12,000 geotechnical engineers and geologists as members. Find out more or join at geoinstitute.org. Music in this episode: Thin Lizzy - Jailbreak. From the 1976 album of the same name.