 The Soprut Saddle Relocatable Terrestrial Field Site is a complex terrain of coarse hills, steep slopes, and narrow drainages. With an elevation of 3,274 to 4,537 feet, this site encompasses 1,438 acres of mixed conifer forests that are experiencing high levels of mortality due to native pine beetles. At the core of this site stands a 171 foot tall flux tower that collects physical and chemical properties of atmosphere and related processes. Soprut Saddle also hosts an array of sensor measurements along with field observations collected by highly trained NEON staff.