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The University of Alabama hosts some historic maps in MrSID format, which require the LizardTech Express View plugin to download. This plugin is no longer available.

I have asked Extensis how I can view or download these files and was told the format these file are in is "too old" and there is nothing currently available.

I have emailed UA tech support but have not heard back.

Does anyone have a suggestion?

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You can request the full file at higher resolution

Example only: San Diego

http://cartweb.geography.ua.edu/lizardtech/iserv/getimage?cat=Special%20Topics&item=Soil%20Surveys%2FCalifornia%2FSan%20Diego%20CA%201915.sid&wid=2048&hei=2048&oif=jpeg&lev=1

You can right click in a web browser and download as jpeg.

Update using google chrome 91 enter image description here

Jpeg viewable/editable in Adobe Photoshop (22) enter image description here

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  • That link gives me an error message saying "cartweb.geography.ua.edu didn't send any data."
    – Darren in Chico
    Commented Jun 3, 2021 at 20:51
  • @DarreninChico not sure on your set up - But in Google Chrome and Adobe Photoshop the link and image works without an issue.
    – Mapperz ♦
    Commented Jun 3, 2021 at 22:37
  • @DarreninChico - I'm able to access the image via the link @Mapperz♦ gave. Using Firefox and Irfanview. However I noted that the text (e.g. in legend) was unreadable. So I doubled the requested resolution values and then I could read it. I don't know how to find out the native (max) resolution, though. Trying a much larger value returned just a "bad request" response. Also - I would suggest a lossless format like tif rather than jpg, but that's just my preference.
    – gspontak
    Commented Jun 8, 2021 at 21:53

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