Triassic - Tongue area

I'm trying to identify a boulder problem up in the Tongue area. I apologize in advance; I don't have access to my pictures at the moment.

In the NE corner of the Tongue area there is a very large boulder split into two halves with a short corridor between where you can walk through. Within this corridor there are some gringo-glyphs of various dates, mostly from 1980 onward. There is one glyph, likely a hoax, which is dated from the 1800’s (it doesn't look that old, especially in comparison with the newer glyphs). The glyphs all consist of names coupled with dates.

On the prow of this boulder there is an overhanging, sit-start problem that is really fun, quality stuff. It is an aesthetic line up a very defined, sharp edged arête that you work up with hand slaps and matching heel hooks until you pull above and around the sharp arête to a more broken area of the problem that leads to the top-out.

Great problem! A lot of fun! It isn’t listed in the Black Bible or anywhere else I can think to look. Does anyone know the problem I’m referencing by chance?