On the following pages of the website you will find QR codes for the geology of the Backcountry.
Before long there will be QR codes for both audio and text at posts out in the backcountry, but until then, you may use the information on the website, taking a geology tour in the comfort of your home.
Click on the black triangle for the audio portion and with your smartphone QR scanner app, scan the QRs to read the information from the brochure.
The following is a link to a website where, for free, you can download a QR scanner for your phone.