Aquatic monitoring crews will sample streams and rivers on BLM-managed lands in Western Colorado and Eastern Oregon using the BLM’s AIM protocol for wadeable lotic systems. Crews will interact with local BLM staff, national level staff at the National Operations Center (NOC), and GBI senior monitoring staff. Data collection involves measuring a variety of attributes including water chemistry and instream physical habitat, collecting aquatic macroinvertebrates, and conducting visual estimates in the riparian zone. Successful applicants will be required to work and camp in the field during 8-day sampling efforts (8 consecutive 10 hour days, followed by 6 days off). Applicants should be prepared to encounter strenuous working conditions, including off-trail hiking and traversing streams. Ad