Two weeks after I first noticed something had gone awry with the USGS Seamless site, they appear to have fixed their server issues. As of this morning, the interactive data viewer and download interface is fully functionaly as far as I can tell.

Now be gentle on their server. Rumour has it, if you download more than 3 DEMs at a time, the server might go down for another 2 weeks! Just kidding… everything seems to be working fine. Download away….