Several Global positioning system (GPS) values were shown on Google map and Kakao map in Korean field. Global positioning system (GPS) was well used in Republic of Korea (Wikipedia, February 12, 2021). Kakao (https://en.wikipedia.org/wiki/Kakao, February 12, 2021.) map system was developed in Republic of Korea, and Google (https://en.wikipedia.org/wiki/Google, 12 February 2021) map system was in United States of America. And both of them were well utilized in geological studies in Republic of Korea. The present researchers measured Global positioning system (GPS) values on the spots near 7-8 Kyotchon-dong Yuseong-gu Daejeon in Republic of Korea. They used a cell phone of Android series, took global positioning system (GPS) values. In order to know the result, the present researchers tried to compare the shape of the curve, and the researchers found the similar cone on both the map systems. Figure 1 and Figure 2 show that these two map systems have similar position.