Spatial Data Management System

Frequently Asked Questions


Do I need any special software to use SDMS?
Do I need any special software to use the Land, Minerals, and Realty (LMaR) web map app?
How often does the data get updated in SDMS and the Lands, Minerals, and Realty (LMaR) web map app?
How can I download the GIS data found in the Lands, Minerals, and Realty (LMaR) web map app?
Where do I find more information on how to use Esri's ArcGIS Online platform, the software hosting the Lands, Minerals, and Realty (LMaR) web map app?

Do I need any special software to use SDMS?

To use SDMS you need:

  • A web browser. SDMS has been tested with Firefox, Internet Explorer 11, Safari, and Chrome web browsers.
  • There are known issues with the new Microsoft Edge Browser that we are working to resolve. Until these issues are resolved, please use one of the supported browsers.
  • If you wish to view the scanned Survey Plats and Notes or Master Title Plats, you must have the DjVu browser plugin installed. The plugin is available free of charge
  • Popups must be enabled for sdms.ak.blm.gov in order for many features of the site to function properly.

Do I need any special software to use the Land, Minerals, and Realty (LMaR) web map app?

LMaR is a web map that is hosted on Esri's ArcGIS Online platform. You can access ArcGIS Online through any web browsers or mobile devices.

How often does the data get updated in SDMS and the Lands, Minerals, and Realty (LMaR) web map app?

Information and reports accessed through ACRES is updated on a daily basis. Conveyance Documents, Master Title Plats, Survey Plats, ANCSA 17(b) Easement Maps, and Alaska Public Laws, Orders and Directives are updated as new information is added. GIS data displayed on LMaR is updated regularly as needed.

How can I download the GIS data found in the Lands, Minerals, and Realty (LMaR) web map app?

Clicking the Download Data link will take you to BLM Alaska's GIS Data page and links to data downloads are listed on this page. Data downloads are done through the BLM's Navigator program.

Where do I find more information on how to use Esri's ArcGIS Online platform, the software hosting the Lands, Minerals, and Realty (LMaR) web map app?

ARCGIS Help has helpful instructions for users of LMaR. While using LMaR, specific instructions for doing some of the common tasks can be found by clicking the Help widget