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Exhibit Sponsors

 Mammoth: Witness to Change would not be possible without the support of our sponsors and donors.

We would like to especially thank the following for their generosity:

Our thanks is also extended to

Additional support for this exhibit has been provided by Hotel/Motel tax support from the following communities: Altoona, Clive, Johnston, Urbandale, West Des Moines, and Polk County.


Allied Insurance

Dickson Industries, Inc.

Integer, Inc.

The Des Moines Register

Clear Channel

Iowa Lottery