About The Team


Green Mountain Tribe Inc. (GMT Inc.) is an organization of nature enthusiasts/aficionados defined by their zeal for the ‘great out…doors’. The group’s name gives regard to the founders of the group who are Filipinos and are beholden to their own Philippine mountains which are mostly ‘green’. They are a ‘tribe’ because their bond surpasses common pursuit, since they consider all members of the group as family. In Filipino, they are called “tribu ng luntiang kabundukan”.

The group, founded by Ceejay Custodio and Dave Mason on March 25, 2005, originally began with 14 members. Their certain love for nature, exploring, and extreme activities brought them together and as the years progressed, they constantly encouraged others to join their endeavors. The group’s numbers are at 90 and more to date, excluding the non-inductees.

GMT believes that anyone can be an Team Leader. They have Organizing Committees with their respective leads who pilots the group on each exploration. These leads are responsible in designating tasks to each member so everyone can be molded into becoming a proficient leader who, not only is knowledgeable on the how-to’s of being a mountaineer but upholds all values and virtues of a true environmentalist.

GMT is committed to leaving the wonders of nature untainted by advocating the “Leave No Trace” principle. In line with that, the group also stresses the importance of ‘giving back’ to the environment through their participation with the Animal Welfare Coalition and engaging in activities such as Seedling Planting, Rescue and Relief Volunteers, Outreach programs and Medical missions, additionally, are other projects of the group in view of their yearning to help those who are in need.


To establish a group eager outdoor enthusiasts/aficionados who encourages solidarity, companionship, comradeship and enhances each individual’s personal well-being.


To safeguard the environment, protect the natural world, and show respect for life by being of assistance to the underprivileged.


Greetings fellow tribesmen,

As part of our initiative to make Green Mountain Tribe a more fun, organized, and active group, we encourage you to send us your feedback on anything about GMT (climbs, events, rules, etc.).

You can post your concerns, suggestions, comments, etc. on this group page. The GMT officers are also available if you need support and assistance on anything that concerns the group:

We hope to hear from you guys. Let’s all do our part for the benefit of all!!!

We don’t just explore the outdoors
We Reach Out – Educate – Volunteer – Cure

Green Mountain Tribe Inc. 2005 – Present

Security and Exchange Commission
Registration Number: CN201212508