Granitic rocks of 1700-m.y. age group

Granite. Paleoproterozoic, about 2,500 to 1,600 million years old. 150 crags on this site have their map point on it.

The map groups these named formations into this unit: Boulder Creek Granite, Cross Creek Granite, Denny Creek Granodiorite, Kroenke Granodiorite, Browns Pass Quartz Monzonite, Powderhorn Granite, Pitts Meadow Granodiorite, Bakers Bridge Granite, Tenmile Granite.

What the map says

Includes Boulder Creek -M.Y. AGE GROUP (AGE 1650-1730 M.Y.)--Includes Boulder Creek, Cross Creek, Denny Creek, Kroenke, Browns Pass, Powderhorn, Pitts Meadow, Bakers Bridge, and Tenmile Granites, Quartz Monzonites, or Granodiorites; also, unnamed granitic rocks Lithology: granite, minor granodiorite, quartz monzonite.

1:500,000 sheet: Horton and others, 2017, U.S. Geological Survey Data Series 1052 (150 crags). A contact line at that scale is about 500 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.