During the intensive wilderness inventory, inventory units containing over 1,924,000 acres of roadless public lands in Idaho were examined in detail to determine the presence or absence of wilderness characteristics. As a result of the intensive inventory field work, it was determined that 35 inventory units totaling 803,836 acres do contain wilderness characteristics, and that 72 inventory units and 1,120,508 do not. The Idaho intensive wilderness inventory proposed decision is based on the findings included in this report.