To Tim,
All of the info is here including coordinates of the blaze.
To the person who asked what Brown drown in the river just prior to 25 mile rapids?
"In 1889 with his investor and company president, Frank Brown, and a rag tag group of men, Stanton set out on a river trip to survey a rail route through the Grand Canyon. Destined for failure from the start, the expedition showed its inexperience.
By mile twelve Frank Brown had drowned, and in Twenty-Five Mile Rapid two more men, Peter Hansbrough and Henry Richards, also drowned. Forced to hike out of a side canyon called South Canyon at river mile twenty-nine, Stanton returned the next year to complete his expedition."
Frank Browns body was never found making it his final resting place or his "home" if you will.