Ages for Topaz at Roy Creek; Little Champion Creek Prospect, Circle District, Yukon-Koyukuk Census Area, Alaska, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 91.8Ma - 79Ma at this locality

• Locality age

• Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
  ree-00672	90.3	83.1				199761	Roy Creek; Little Champion Creek Prospect, Circle District, Yukon-Koyukuk Census Area, Alaska, USA	Orris and Grauch (2002)	USGSOFR02_189
  ree-00806	91.8	79				199761	Roy Creek; Little Champion Creek Prospect, Circle District, Yukon-Koyukuk Census Area, Alaska, USA	Orris and Grauch (2002)	USGSOFR02_189