When riding the "Red Trail" counter-clockwise, Johnson's Mountain begins across the Peavine Falls Road from the end of Foreplay. The first little bit isn't terribly difficult but it turns into a technical climb up the hill pretty quickly. There are a number of large obstacles, such as rocks and roots, on the climb. After this climb, the trail meanders along the top of the ridge. A pleasant flowing descent then follows. You'll cross a bridge just before exiting the trail to the Peavine Falls Road across from the classic BUMP Trail.
Johnson's Mountain can be bypassed by taking the Peavine Falls Road up the hill to the BUMP Trail. However, Johnson's Mountain flows better in the opposite direction.