This line may entice you if you are already at the R end of the Lower Twin Owls. This is a fun, short, TR problem between Second Thoughts and One of Life's Little Problems on the right end of the Lower Twin Owls. The black lichen streak just beckons to all couch potatoes. There are more lines to play on here (One of Life's Little Problems & its 5.8 variation, Black Lichen Streak, Second Thoughts, Alignment of the Misaligned, and Thin Crack) on a sunny, windless, late fall or winter day.
Find this line by hiking up the Lower Twin Owls trail to nadir of the Lower Twin Owls buttress (where Tilted Mitten starts). Continue up & R on a trail until you come to a large RFD is described as an alcove in the Gillett guides. It is probably 400 ft up and R.
Climb up the crack just left of Second Thoughts/Alignment of the Misaligned or the crack directly below the black streak. Gain the ledge below the black streak. Move up to knobs with your left foot. Use the shallow flake to a good left lieback hold. Walk your feet up high and get a wide shallow edge (crux) and pull up. Note, a red or yellow Alien can work as a directional just above the black streak.
You can reach this tree by climbing Second Thoughts, Alignment of the Misaligned, Thin Crack, or the start to (One of Life's Little Problems (to #4 Camalot) and then traverse right (#2 Camalot) to the tree.
Red Alien for directional, long slings (48"+ for tree).