Found a great photo of where I was stationed in 1967.
I was here in 1967. Great photos of
Camp Spade...
http://nasaa-home.org/asa/clark/Hq-508th.htm
508th Group's Headquarters and Headquarters Company was located in Yongdongpo, just across the Han River from the main part of Seoul. It was about 20 minutes from the Eighth U.S. Army Hq. and 15 minutes from downtown Seoul by jeep. The compound was called Camp Spade.
The photo above is an aerial shot of Camp Spade, showing the entire compound and some of the surrounding area. Note the traffic circle in the lower-left. The Han River can be seen in the upper-right. The road on the right side of the compound is the route to Seoul (and everywhere else).