1940 Enumeration District Maps

I saw this post on the Seattle Genealogical Society Presidents Blog. It pointed out that NARA has posted copies of the Enumeration District maps. Click on this link and click on search and then type in 1940 Census Maps [county name] [state name], so when I typed in Spokane County there was three hits and they also had a box that said Digital Copies so when I clicked on the first one I got thumbnails of Spokane County, the second one had 4 thumbnails of Spokane City, I downloaded the north east section of Spokane City since my mom and I think my dad were both living there in 1940. The Enumeration Districts are very hard to read as they are kind of faint, but it looks like my mom is in ED 10 and my dad in ED 25.