Geotourism is becoming more popular and can play a critical role in creating literacy in communities. Moreover, the Big Ideas of the Earth Science Literacy Initiative can be used within signage to address literacy. Because all citizens should have a basic knowledge of Earth Science in order to make informed decisions that relate to Earth Science, geotourism can be used as a way to increase Earth Science knowledge, along with other positive outcomes related to communities' increased well-being. A careful investigation of N=59 geosites reveals that signage can be used to increase this knowledge but that there is a deficit in the number and quality of the signage present at some of these sites. A gap has been uncovered regarding the efforts to teach Earth Science