Act and dated April 28, 2016, within the Salmon-Challis National Forest and land administered by the Upper Snake or Challis Field Office of the Bureau of Land Management is designated as Boulder/White Clouds/Lost River Range Corridor and shall be subject to the special corridor management requirements under section 203. (q) Bitterroot/Lemhi corridor Certain Federal land comprising approximately 20,000 acres, as generally depicted on the map entitled Northern Rockies Ecosystem Protection Act and dated April 28, 2016, within the Salmon-Challis National Forest and land administered by the Challis Field Office of the Bureau of Land Management is designated as Frank Church Complex/Lemhi Range Corridor and shall be subject to the special corridor management requirements under section 203. (r) Greater Glacier/Greater Yellowstone corridor Certain Federal land comprising approximately 542,000 acres, as generally depicted on the map entitled Northern Rockies Ecosystem Protection Act and dated April 28, 2016, within the Custer Gallatin, Helena, or Lewis and Clark National Forest and land administered by the Lewistown Field Office of the Bureau of Land Management is designated as Greater Glacier/Greater Yellowstone Corridor and shall be subject to the special corridor management requirements under section 203. (s) Mt. Leidy Highlands/Wind River Range corridors Certain Federal land comprising approximately 69,000 acres, as generally depicted on the map entitled Northern Rockies Ecosystem Protection Act and dated April 28, 2016, within the Bridger-Teton or Shoshone National Forest and land administered by the Lewistown Field Office of the Bureau of Land Management is designated as Mt. Leidy Highlands/Wind River Range Corridor and shall be subject to the special corridor management requirements under section 203. 203. Treatment of biological connecting corridors (a) In general Those portions of the biological connecting corridors designated by section 202 are designated as special corridor management areas and shall be managed