The Reese Management Unit (RMU) is within the USGS Reese hydrologic unit (HUC 16040107). LCT populations present in this unit are genetically distinct from HMU LCT populations, likely due to the distance to the confluence with the Humboldt River. This unit contains many miles of stream/river habitats within a high-elevation, extensive, and climate-resilient mountain range. Currently, there are six potential LCT recovery populations in the RMU, however, none of them are resilient. Five of the six populations (Crane Canyon, Marysville, Mohawk, Tierney, and Washington Creeks) are unlikely to be resilient and are in small headwater stream habitat fragments that are in relatively poor to moderate condition. The LCT population in San Juan and Cottonwood Creeks is potentially resilient, but currently contains low genetic health metrics. Plans to remove non-native trout from upper Reese River in Arc Dome Wilderness and reestablish a large, interconnected LCT population failed due to stakeholder disagreements; in order to meet RMU 3, this project is the only realistic, shovel-ready, logical option. In addition, several isolated stream LCT populations exist on the east side of the Toiyabe Range; however, these populations are technically out of the historical range of LCT. Nonetheless, these out-of-historical-range populations were founded with original RMU LCT and provide some level of redundancy for this unit.

The updated objectives for LCT in the RMU are:

RMU 1) Remove threats (i.e., competition, predation, hybridization) associated with non-native trout species to allow for the formation and/or maintenance of RMU LCT populations identified in RMU objectives 3–5; and

RMU 2) Ensure all habitats required to meet RMU objectives 3–5 function ecologically. In some cases, this may require restoration and/or management changes; and

RMU 3) Provide enough stream/river habitat to allow for the expression of migratory life-history characteristics in at least 1 recovery population (i.e., interconnected population); and

RMU 4) Maintain at least 1 additional recovery population that is spatially separated from the interconnected population that is required by RMU objective 3; and

RMU 5) Maintain existing, isolated populations (including the out-of-historical-range populations) that cannot individually meet the recovery population benchmarks provided in this document. Actively manage those populations together based on guidance provided in the pending LCT Genetics Management Plan to result in at least 1 additional recovery population.