Title 30Mineral Lands and MiningRelease 119-73

§611 Common varieties of sand, stone, gravel, pumice, pumicite, or cinders, and petrified wood

Title 30 › Chapter CHAPTER 15— - SURFACE RESOURCES › Subchapter SUBCHAPTER II— - MINING LOCATIONS › § 611

Last updated Apr 6, 2026|Official source

Summary

Prevents people from making a valid federal mining claim based only on common sand, stone, gravel, pumice, pumicite, cinders, or petrified wood. If a different valuable mineral is found in or with those materials, a claim based on that other mineral is still okay. “Common varieties” does not mean a deposit that is valuable because of a special property, and it excludes “block pumice” (natural pieces with any one dimension 2 inches or more). “Petrified wood” means wood turned to stone by silica or similar material (for example, agatized, opalized, or silicified wood).

Full Legal Text

Title 30, §611

Mineral Lands and Mining — Source: USLM XML via OLRC

No deposit of common varieties of sand, stone, gravel, pumice, pumicite, or cinders and no deposit of petrified wood shall be deemed a valuable mineral deposit within the meaning of the mining laws of the United States so as to give effective validity to any mining claim hereafter located under such mining laws: Provided, however, That nothing herein shall affect the validity of any mining location based upon discovery of some other mineral occurring in or in association with such a deposit. “Common varieties” as used in this subchapter and section 601 and 603 of this title does not include deposits of such materials which are valuable because the deposit has some property giving it distinct and special value and does not include so-called “block pumice” which occurs in nature in pieces having one dimension of two inches or more. “Petrified wood” as used in this subchapter and section 601 and 603 of this title means agatized, opalized, petrified, or silicified wood, or any material formed by the replacement of wood by silica or other matter.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

1962—Pub. L. 87–713 defined “petrified wood”, and provided that no deposit of petrified wood shall be deemed a valuable mineral deposit within the mining laws of the United States.

Statutory Notes and Related Subsidiaries

Regulations

for Removal of Limited Quantities of Petrified Wood Pub. L. 87–713, § 2, Sept. 28, 1962, 76 Stat. 652, provided that: “The Secretary of the Interior shall provide by regulation that limited quantities of petrified wood may be removed without charge from those public lands which he shall specify.”

Reference

Citations & Metadata

Citation

30 U.S.C. § 611

Title 30Mineral Lands and Mining

Last Updated

Apr 6, 2026

Release point: 119-73