In downtown Cheongju just look for the nearest biggest mountain and go to it. There is a TV tower on top.
Look out for Koreans offering soju.
take a pad and a smile
A spring at many locations on the mountain.. well more a big hill.
Busy days.. na...
my opinion. don't come here if you are far away. only a few problems as I can tell.
Busses 841-846 bring you to the Myeong-am side of Uamsan. . . this is better for bouldering. . . these busses don't run to the inner-city/express bus terminals, on the other side of town. You'll have to catch one at the City Gymnasium! Regular city busses (as of 03/07 were W850).
Not many boulders behind Bohynsa (temple), Cheongju University or on the N-facing slope. Spotter is recommended! Some of those landings. . .