Separate Concurring Opinion 30 G.R. No. 224469 settling of the precise boundaries of the appellees' claim ... At all events, they found that the appellees and their ancestors had held the claim and worked it to the exclusion of all others down to the bringing of this suit, and that the boundaries were as shown in a plan that was filed and seems 146 to have been put in evidence before the trial came to an end. Reavis recognized the extent of the natives' rights over their ancestral territories. It acknowledged that their rights extend not only to the lands, but likewise include the natural resources found in them. 147 Accordingly, the State's power over these resources extend onlfto its regulation. The State, as laid down under Section 57 of IPRA, can only provide for the guidelines and limitation on how these resources can be utilized, thus: SECTION 57. Natural Resources within Ancestral Domains. - The ICCs/IPs shall have priority rights in the harvesting, extraction, development or exploitation of any natural resources within the ancestral domains. A non-member of the ICCs/IPs concerned may be allowed to take part in the development and utilization of the natural resources for a period of not exceeding twenty-five (25) years renewable for not more than twenty-five (25) years: Provided, That a formal and written agreement is entered into with the ICCs/IPs concerned or that the community, pursuant to its own decision making process, has agreed to allow such operation: Provided, finally, That the NCIP may exercise visitorial powers and take appropriate action to safeguard the rights of the ICCs/IPs under the same contract. V There are at least six prov1s10ns in the 1987 Constitution which protect the rights of indigenous peoples to their customs, heritage, and traditions: 148 (1) Article 2, Section 22; 149 (2) Article VI, Section 5(2); 150 (3) Article XII, Section 5; 151 (4) Article XIII, Section 6; 152 (5) Article XIV, 146 147 148 149 15 ° 151 152 215 U.S. I 6 (1909). Dominique Gallego, Indigenous Peoples: Their Right to Compensation Sui Generis for Ancestral Territories Taken, 43 ATENEO L. J. 43, 55 (1998). See J. Puno, Separate Opinion in Cruz v. Secretary of Natural Resources, 400 Phil. 904, 932-1016 (2000) [Per Curiam, En Banc]. CONST., art. II, sec. 22 provides: SECTION 22. The State recognizes and promotes the rights of indigenous cultural communities within the framework of national unity and development. CONST., art. VI, sec. 5(2) provides: (2) The party-list representatives shall constitute twenty per centum of the total number of representatives including those under the party list. For three consecutive terms after the ratification of this Constitution, one-half of the seats allocated to party-list representatives shall be filled, as provided by law, by selection or election from the labor, peasant, urban poor, indigenous cultural communities, women, youth, and such other sectors as may be provided by law, except the religious sector. CONST., article XII, sec. 5 provides: SECTION 5. The State, subject to the provisions of this Constitution and national development policies and programs, shall protect the rights of indigenous cultural communities to their ancestral lands to ensure their economic, social, and cultural well-being. The Congress may provide for the applicability of customary laws governing property rights or relations in determining the ownership and extent of ancestral domain. CONST., art. XIII, sec. 6 provides: SECTION 6. The State shall apply the principles of agrarian reform or stewardship, whenever applicable in accordance with law. in the disposition or utilization of other natural resources, including I