Mineral & Land Records System (MLRS)

Angled laptop computer with the MLRS application shown on the screen as a person  just out of focus on the right is using the keyboard

MLRS Overview

The Bureau of Land Management (BLM) is developing the Mineral & Land Records System (MLRS) to replace the Legacy Rehost 2000 (LR2000) case management system, Alaska Land Information System (ALIS), and land status records (e.g., Master Title Plats, Historical Indices, Tract Books).

MLRS is a customer-centric, geospatially enabled land information system that employs nationally standardized business processes, ensuring the quality and accuracy of land and mineral records and data while securely delivering land records information to relevant BLM staff, customers, and the public.

The MLRS mining claims module was released on January 25, 2021. Over the next two years, additional MLRS modules will be released in support of land and mineral use authorizations for oil, gas, and geothermal leasing; rights-of-way; coal and other mineral development; land and mineral title; and withdrawals, classifications, and other actions on Federal lands and mineral estate.


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Frequently Asked Questions

MLRS is being implemented in phases. Currently you can use the system for mining claim related filings and information. This includes filing new claims, managing existing claims, paying annual maintenance fees, transfers, amendments, and affidavit of assessment work – all online! MLRS will later be expanded to include various other case types.

MLRS is being implemented in phases. Currently you can use MLRS for mining-related claims, such as submitting a new lode, placer, tunnel site, or mill site mining claim.

You can also take action on an existing lode, placer, tunnel, or mill site claim, including:

  • Transfer of Interest
  • Relinquishment
  • Paying maintenance fees
  • Submitting Affidavit of Assessment Work & Proof of Labor
  • Designating Active Duty Military Status
  • Initiating an appeal to IBLA

In future releases MLRS will be updated to include solid minerals, rights of way, & other lands and mineral cases. Please stay tuned!

MLRS allows you to do many of the same mining claims tasks done at public rooms, but online. Documents requiring original signatures can be mailed in rather than dropped off in person. But you can always visit the public room if preferred.

Yes, MLRS is free to use, and there are no additional fees to create an account.

View our complete list of MLRS FAQs

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Related Resources


BLM is using a phased, modular approach to transition all case types into MLRS.

Icon of a mining cart filled with stone
Mining Claims
Now live!
Fluid and geothermal icon
Fluid Minerals & Geothermal
Rights of Way icon
Rights of Way & Realty Billing
Icon of a safety gate
Remaining Case Types
Icon of a solid color in the shape of the State of Alaska
All Case Types for Alaska
Icon depicting land layers
Next Generation Master Title Plats

Contact Info

General MLRS inquiries:

MLRS technical support: