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Geological Formation

Chocolate Hills

Karst Caves and Sinkholes

The Chocolate Hills are a formation of more than 1,200 conical, grass-covered limestone hills spread across roughly 50 square kilometers of Bohol Island in the Philippines, each rising between about 30 and 120 meters, formed from a marine limestone deposited millions of years ago and later uplifted above sea level. The hills' distinctive rounded, near-uniform conical shapes are the product of long-term chemical weathering and dissolution of the limestone by rainwater and groundwater, a karst process that etched deep, evenly spaced fissures into the uplifted limestone plateau, leaving isolated conical remnants standing between them. During the dry season the grass covering the hills turns brown, giving them their name and a resemblance to giant mounds of chocolate; local legend also attributes their creation to the tears of a heartbroken giant.

Facts
Classification
Protected Status
National Monument or Landmark 1
Connections

Associated With

Limestone, Materials
Source Wikipedia: Chocolate Hills, Wikipedia
Pleistocene, Eras
Source Wikipedia: Chocolate Hills, Wikipedia
Pliocene, Eras
Source Wikipedia: Chocolate Hills, Wikipedia

Caused By

Karstification, Processes
Source Wikipedia: Chocolate Hills, Wikipedia

In Discipline

Geomorphology, Disciplines
In the Other Atlases

Found In

Philippines

Also in Geography Atlas: where this subject is found.

Source Wikidata: Chocolate Hills
Sources
1. Wikipedia: Chocolate Hills, Wikipedia
  • Legislation
    The National Committee on Geological Sciences declared the Chocolate Hills of Bohol a National Geological Monument on June 18, 1988, in recognition of its special characteristics, scientific importance, uniqueness, and high scenic value.
  • In Group: Karst Landscapes and Landforms, Origin
    The Chocolate Hills are conical karst that consist of Late Pliocene to Early Pleistocene, thin to medium-bedded, sandy to rubbly marine limestone.
  • Associated With: Pliocene, Article text, age Pliocene
    The Chocolate Hills are conical karst that consist of Late Pliocene to Early Pleistocene, thin to medium-bedded, sandy to rubbly marine limestone.
  • Associated With: Pleistocene, Article text, age Pleistocene
    The Chocolate Hills are conical karst that consist of Late Pliocene to Early Pleistocene, thin to medium-bedded, sandy to rubbly marine limestone.
  • Associated With: Limestone, Article text, rock Limestone
    The Chocolate Hills are conical karst that consist of Late Pliocene to Early Pleistocene, thin to medium-bedded, sandy to rubbly marine limestone.
  • Caused By: Karstification, Article text, process Karstification
    These conical hills are geomorphological features called cockpit karst, which were created by a combination of the dissolution of limestone by rainfall, surface water, and groundwater, and their subaerial erosion by streams after they had been uplifted above sea level and fractured by tectonic processes.
View the Source
Wikidata: Chocolate Hills
Wikidata Q977422, class allow-list match (w-wdresolver-0926)View the Source
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