In an effort to reduce its carbon footprint and increase its sustainability and energy efficiency, the US Forest Service decided to consolidate three regional offices of the Pemigewasset Ranger District. With an eye on achieving a minimum US Green Building Council (USGBC) Leadership in Energy & Environmental Design (LEED) rating of Silver, the architect incorporated many green technologies including a Clivus composting system, foam-flush toilets, and a greywater filtering/recycling system. The result is a 23,400-square