"Xia missile submarine at Jianggezhuang Submarine Base, with underground sub facility. Published for the first time in a satellite image. Satellite image courtesy: DigitalGlobe, April 19, 2004."

http://www.imagingnotes.com/go/image.php?art_id=1&img_id=4

I have turned the images into overlays at the correct position in Google Earth.

Here is a blog post about the images, released to the public in February 2006:

http://www.ogleearth.com/2006/02/chinas_secret_n.html

Stefan Geens
www.ogleearth.com -- a blog about Google Earth.

Forgot to mention, this story made it into Google Earth Blog.

Here's the story.

There was a nother one discovered on Hainan Island? Hainan Island is 1300 miles SSW of this base.