Peraluminous monzogranite
Granite. Mesoproterozoic, about 1,600 to 1,000 million years old. 1 crag on this site has its map point on it.
What the map says
Rocks are very similar to those of Silver Plume Granite (YgSP). Mapped by many people as Silver Plume Granite; however, uncertainty as to whether they formed from same magma or intrusive episode (Tweto, 1987) is reason unit is mapped separately. Undated
1:100,000 sheet: Kellogg and others, 2008, USGS Geologic Investigations Series 3000 (1 crag). A contact line at that scale is about 100 m wide on the ground.
Served by Macrostrat (CC BY 4.0). The wording is the map's own, quoted as a fact about the mapped unit, not about any one wall.