©2005-2009 HaJo Schatz
Mountainbiking (and possibly hiking) in Korea is an interesting undertaking for a foreigner. There are heaps of tracks & paths to explore all over the country, but not well mapped. Seems like people post tracks on blogs, but all in Korean...
So here's a solution for you foreigners: Daum has very good quality aerial photographs of the country. With the MyGPX Creator you can draw your own route over these aerial photographs, download the result as a GPX file for your GPS receiver and go out riding/trekking them.
The Analyzer lets you analyze a track. This is work-in-progress, it may one day evolve into a database.