| 541. | Entry and location; filing of copy of notice of mining location; report and payment for lignite mined; mineral patents; reservation of minerals to United States. | |
| 541a. | Claims located prior to May 25, 1955 ; extralateral rights; amended notice of mining location. | |
| 541b. | Mining, removal, and disposal of lignite. | |
| 541c. | Lands where coal deposits have been reserved to the United States. | |
| 541d. | Location of source materials by holders of coal leases. | |
| 541e. | Definitions. | |
| 541f. | Disbursement of moneys. | |
| 541g. | Rules and regulations. | |
| 541h. | Savings provisions. | |
| 541i. | Withdrawal of lands from entry; expiration of claims. | |
