OpenTopography will be performing maintenance on servers associated with our standard DEM download system on Friday, November 12th. During this time, DEM downloads will be unavailable. Please check the "LiDAR System Status" box in the left hand menu under the "Data" tab for updated information related to the outage. This maintenance does not effect other aspects of the OpenTopography system, and therefore users will still be able to download LiDAR point cloud data and generate custom DEMs, as well as access other OpenTopography resources. Thank you for your patience.