The Island 35 Mastodon was discovered on Island No. 35 of the Mississippi River in Tipton County, Tennessee, United States.
In 1900, a mastodon skeleton was excavated approximately 3 miles (4.8 km) east of Reverie, Tennessee and 4 miles (6.4 km) southeast of Wilson, Arkansas. In 1957 the site was reported as destroyed.
Mastodons are members of the prehistoric, extinct genus Mammut. They resemble modern elephants.
Native to North America, they are said to have lived on the North American continent from almost 4 million years ago, in the Pliocene Epoch, until their eventual disappearance about 10,000 years ago.
In 1900, archaeologist James K. Hampson documented the discovery of skeletal remains of a mastodon on Island No. 35 of the Mississippi River, Tipton County, Tennessee. The site of the prehistoric find is approximately 3 miles (4.8 km) east of Reverie, Tennessee and 23 miles (37 km) south of Blytheville, Arkansas.
During heavy rain in June 1900, sand at the point bar of Island No. 35 had been washed away, exposing the mastodon skeleton in the sediment when the water retreated from the sandbar in July of the same year.