Brooks Range
Grizzly along the Denali Highway Rafting the Gulkana National Wild River Native woman drying salmon on racks ATV rider on trails near Glennallen Surveyor
Spatial Data Management System


February 7, 2011
Modified Detailed Land Status Layers
Moved Native Allotments and Federal Mining Claims layers from Land Status folder to the Detailed Land Status Folder. Also, moved the NPRA Lease Sales layer from from Administrative Boundaries folder to the Detailed Land Status folder. NPRA Lease Sales layer was renamed to NPRA O&G Leases layer. The move was made since these three layers represent detailed land status layers and have specific rather than generalized locations.
August 16, 2010
New Detailed Land Status Layers
SDMS now contains 13 separate Detailed Land Status layers. Land status is now displayed for these 13 layers down to the aliquot-part or sub-section level where available.

The Native Allotments have been combined into one layer. You are now able to see all the Native Allotments in at once and distinquish whether the allotment was digitized from MTP OR collected from Special Survey Plats.

August 11, 2010
SDMS Down for Maintenance this weekend
Due to maintenance, the SDMS site will be intermittently unavailable from 1700 ADT Friday August 13 through 0600 ADT Monday August 16. You may experience disruptions in service during this time period.
November 30, 2009
SDMS Down for Maintenance
Due to maintenance, the SDMS site will be unavailable from 1700 AST Friday December 4 until 0600 AST Monday December 7.
April 15, 2009
When downloading data using the map interface you now have the option of including a KML file for each vector layer you have selected. You can view the KML file using Google Earth. Selecting this option will require additional processing time and increase the overall size of the download file. Note: only data downloaded from the map interface include KML---other downloadable data on the SDMS site do not.
October 23, 2008
Web Map Service
The data on SDMS is available via Web Map Service (WMS). Details can be found on the WMS page.
September 30, 2008
SDMS Scheduled Downtime
SDMS will be unavailable intermittently over the coming weekend (10/03 through 10/04) for scheduled maintenance.
September 17, 2008
SDMS Scheduled Downtime
SDMS will be unavailable intermittently over the weekend (9/20 through 9/21) for scheduled maintenance.
September 3, 2008
SDMS Unavailable
Due to equipment upgrades in the computer center, SDMS will be unavailable from 1630 to 2200 Alaska Daylight time on September 3, 2008.
April 2, 2008
SDMS Maintenance
SDMS will be down for scheduled maintenance beginning Friday April 18 at 0600 ADT. Maintenance should be completed by 0600 Monday April 21. The nature of the maintenance requires an extended period to complete.
February 27, 2008
SDMS Returns to the Internet
SDMS returns to the Internet with new data layers, features, and a completely redesigned look and feel. If you have comments or questions, please feel free to provide feedback via email.
October 1, 2007
New Data
The NPRA lease sale parcels are now available on SDMS. This information covers sales made in 1999, 2002, 2004, and 2006.
ACRES Reports Available
You can now view the case abstracts for parcels in the Surveyed Lands and NPRA Lease Sales layers. When you identify a parcel, a View Case Abstract link will appear in the identify results frame. Clicking on the link will open a new window with the case abstract report. From there you can view other reports from ACRES for the case.
August 24, 2007
Data Download
You can now download the data in your view window. There is a download tool on the toolbar. For more information click on the "Tool Help" button and scroll down to the "Download" description.
August 16, 2007
There have been a number of recent enhancements to SDMS:
Survey Comments
Comments for survey data (lands, corners boundaries) can now be viewed. When identifying a feature with comments, a "View" link will be present below the attribute information. Clicking on the link brings up the comments.

Measurement Tool
The measurement tool now expresses direction in both bearing and azimuth

New Scales for Printing
This function creates a map at the scale you choose, centered on the current extent. When you choose a scale and generate the map, the view is zoomed appropriately. Two new scales, 1:24,000 and 1:63,360, have been added to the drop down list.

Fix for Map Printing
Previously the legend text was too big to fit within the neatlines on the map. This has been corrected.

Township Locator
You can now enter a township in the following formats:
  • T1N, R1W, SM
  • T1NR1WS
  • S001N001W
Either lower or upper case will work.

Source Name Added
Source name has been added to the following layers:
  • Surveyed Lands
  • Surveyed Corners
  • Surveyed Boundaries
This information is visible when identifying a feature from one of the layers.

HUC Added to NHD
The hydrologic unit code (HUC) has been added as an attribute to the NHD layer.