Welcome to the official site of the United States Earth Science Organization (formerly United States Earth Science Olympiad).

The United States Earth Science Organization (USESO) organizes a competition (previously known as the United States Earth Science Olympiad) for high school students in the United States designed to promote Earth science education on a national scale. In addition to preparing students for the international competition, the International Earth Science Olympiad (IESO), the USESO program nurtures the scientific, practical, and team skills necessary for success in the advocacy of the Earth and its global systems.

Registration for USESO 2020 is CLOSED. Please register your email at this link to be notified when registration for the next iteration of USESO is open.

Latest News: Congratulations to the 2020 U.S. Earth Science Team

The mentors and students of USESO Training Camp 2018.