Lewis and Clark National Historic Trail Extension Act of 2006

[AI summary unavailable — showing source text] Lewis and Clark National Historic Trail Extension Act of 2006 - Amends the National Trails System Act to extend the Lewis and Clark National Historic Trail to include: (1) the route followed by Meriwether Lewis and William Clark in the preparation phase of their expedition, starting at Monticello, near Charlottesville, Virginia, and traveling to Wood River, Illinois, and in the return phase starting from Saint Louis, Missouri, to Washington, D.C.; and (2) each designated Lewis and Clark site in the states of Virginia, Washington, D.C., Maryland, Delaware, Pennsylvania, West Virginia, Ohio, Kentucky, Tennessee, Indiana, and Illinois.…