Day-40, still in Chadron NE.  Today we drove 55 miles up to Pine Ridge Reservation in South Dakota and then another 15 miles to the Wounded Knee Massacre site.  The massacre of Indians in December of 1890 by Federal troops, triggered by some threatening moves (probably on both sides), resulted in at least 170 Indian deaths, including many women and children killed by canon fire.  Something on the order of 25 soldiers were killed.  This was the last major conflict of the so-called Indian Wars period.  A massive tragedy.  The site is now an open field containing some rustic structures that are probably used in ceremonial gatherings.  We bought a trinket from an Lakota woman at the site.  We then visited the Heritage Center in Pine Ridge and viewed a great variety of Native American art.  Adjacent to the Center is the cemetery in which the great Lakota Chief, Red Cloud, is buried.  The Native Americans we've met have been so incredibly nice and kind, making the Wounded Knee Massacre all the more difficult to fathom.  Tomorrow we head to North Platte NE, 220 miles to the southeast.