There are many places online to buy maps, however book stores may have small sections of maps for sale as well. Government agencies who create maps may have some for purchase. Another option is professional member organizations such as the Geological Society of America.
If you have questions or need help with research, please contact me at firstname.lastname@example.org.
To schedule an online meeting through Webex, Zoom, or GoogleMeet, please email me and let me know your preference.