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Thumb Peak is a mountain in Isabela, about 1,149 m high. Reason for Tier 3: no published hiking information found.
No organizer has listed this yet
Facts stay on this page. A departure appears when an organizer publishes a date on this mountain.
No trail is written up here yet. Organizers can still publish a departure and link it later.
Coordinates on the Wikipedia list come from OpenStreetMap contributors and GeoNames.