To seek the deep.

To explore, survey, and conduct a comprehensive speleological study of the Sistema Huautla area caves. 

Annual expeditions started in 2014, paused due to the COVID pandemic in 2020 and 2021, and resumed in 2022. No expedition was held in 2025, but one is planned for 2026.   

       * Goal of reaching 100 km in length (attained in 2022)

* Goal of reaching 1,610m in depth,  a vertical mile

* Support the underground research of Mexican scientists

PESH, Inc. is an IRS determined 501(c)3 non-profit.

Donations are welcome and needed for our original exploration project. They can be sent by check made out to PESH Inc., mailed to 500 Kingston Dr., Irving, Texas 75061, or by PayPal to sistemahuautla@aol.com. A thank you/tax letter and other interesting information will be sent to you.

Site build: Stephen Eginoire ©2018. www.stepheneginoire.com