31miles/50K peak training completed before heading to GrandCanyonNPS to run #R2R2R or the Grand Canyon double crossing next month. 7 months training hard. Hills, stairs, long runs and sub-zero runs in Michigan winter. I am so ready for it! 🏜🏃🏻👊🏼 https://t.co/7hs1DBy4gF31miles/50K peak training completed before heading to GrandCanyonNPS to run #R2R2R or the Grand Canyon double crossing next month. 7 months 8723350 31miles/50K peak training completed before heading to GrandCanyonNPS to run #R2R2R or the Grand Canyon double crossing next month. 7