Resources

The Lewis and Clark Interpretive Center in Great Falls, Mont., is one of the most comprehensive and well-designed facilities of its type along the entire Lewis and Clark trail: http://www.fs.fed.us/r1/lewisclark/lcic.htm.

There are many sources of information about wolves and grizzlies in the Rockies, among them the following.

• Sierra Club's Grizzly Bear Ecosystem Project: http://grizzly.sierraclub.org/
• Montana Department of Fish, Wildlife and Parks: http://fwp.state.mt.us/wildthings/wolf/wolfmanagement.asp (wolves) and http://fwp.state.mt.us/wildthings/t&e/threatened.asp#grizzly (grizzlies)
• Yellowstone National Park: http://www.nps.gov/yell/nature/animals/wolf/wolfup.html (wolves) and http://www.nps.gov/yell/nature/animals/bear/index.htm (bears)
• U.S. Fish and Wildlife Service: http://www.r6.fws.gov/wolf/ (wolves) and http://www.r6.fws.gov/endspp/grizzly/ (grizzlies).

Gates of the Mountains Boat Tours offers narrated excursions on Holter Lake, where the Missouri River has carved a narrow passage through sheer cliffs: http://www.gatesofthemountains.com/.

For those wishing to follow the Lewis and Clark trail, there are several useful guidebooks, each of which provides a different level of detail. The best three are "National Geographic's Guide to the Lewis & Clark Trail" by Thomas Schmidt, "Traveling the Lewis & Clark Trail" by Julie Fanselow, and "Along the Trail With Lewis and Clark" by Barbara Fifer and Vicky Soderberg.

General background information about the bicentennial and other events associated with the expedition is available online from several sources.

• National Council of the Lewis and Clark Bicentennial: lewisandclark200.org/
• National Park Service: www.nps.gov/lecl/
• Lewis and Clark Trail Heritage Foundation: www.lewisandclark.org/