http://tags.library.upenn.edu/tag/maps+copyright PennTags Feed http://tags.library.upenn.edu/makerecord/url/9339 http://tags.library.upenn.edu/makerecord/url/9339 Ransom<br />-Help liberate over 56,000 digital USGS maps. Donate or purchase maps on DVD to meet the ransom demand. Once the $1600 ransom is met, all maps will be handed over to the Internet Archive. The Internet Archive will make every map available for free download forever!