Black and white lantern slide of a map of flying routes over Yucatan, Mexico.

Black and white lantern slide copy of a map of the Bay of Naples by Baedeker.

Black and white lantern slide copy of a map of Herculaneum.

Black and white lantern slide copy of a map of Lake Agassiz, large glacial lake in central North America during the last glacial period.

Black and white lanern slide copy of a recession map of St. Anthony Falls, Minneapolis, Minnesota.

Black and white lanern slide copy of a recession profile diagram of St. Anthony Falls, Minneapolis, Minnesota.

Black and white lantern slide copy of a geological map of St. Paul, Minnesota.

Black and white lantern slide copy of a map of Indian trails in west Michigan counties Ottawa, Kent, Muskegon, Newaygo, and Oceana.

Black and white lantern slide copy of a map of a mastodon excavation site in Barry County, Michigan drawn by Robert Hughes.

Black and white lantern slide copy of a geological map of Yellowstone National Park and Yellowstone Forest Reserve from an unknow source.

Black and white lantern slide copy of a map of roads connecting Zion, Bryce Canyon National Parks and Cedar Breaks National Monument.

Black and white lantern slide of a sketch map showing mastodon bone locations at the Jonio Farm site.