- BBC Science & Nature: American Mastodon
 - Offers a profile of the elephant-like American mastodon was a distant relative of the woolly mammoth with which it shared its ice age home in North America. - Calvin College Mastodon Page
- General mastodon resource as well as project information on the 1999 Grand Rapids dig. Contains many photographs, diagrams, journal articles, and links.
- Ice Age Animals: Mastodons
- Provides relevant links, photos, and a colour illustration of the American Mastodon, Mammut americanum, that roamed North America from 3.75 million to 11,000 years ago.
- Mastodon State Historic Site
- Missouri state historic site that contains the Kimmswick Bone Bed, where scientists discovered the first solid evidence of the coexistence of humans and the American mastodon in eastern North America. Includes information on hiking trials, picnic areas, camping, and other activities.
- The Mastodon Page
- Learn about the Palaeontological Research Institution and Cornell University's three New York state mastodon excavations. The PRI site includes photos from the digs and information of the Adopt A Bone project.
- Warren Mastodon
- Facts about the first entire American mastodon skeleton found in the United States (discovered in 1845) at the American Museum of Natural History.
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