http://www.isu.edu/~trinmich/Jumpingoff.html

http://tomlaidlaw.com/clickable/clickable2.html

http://www.isu.edu/~trinmich/00.ar.sager1.html

http://www.endoftheoregontrail.org/maplibrary/oregontrail.html

http://www.oregontrailcenter.org/map.html

http://edsitement.neh.gov/lessonplans/oregon_trail.html

http://www.isu.edu/~trinmich/Facts.html

http://www.pbs.org/weta/thewest/program/episodes/seven/

http://www.usnews.com/usnews/nycu/travel/trdvor3.htm

	http://memory.loc.gov/ammem/ndlpedu/activity/puzzle/puzintro.html
	http://www.econedlink.org/lessons/index.cfm?lesson=EM276