Visitors to Mt. Graham are advised to use extra caution due to monsoonal storms and increased potential for flooding.
Heavy rainfall may cause downstream flooding of streams, canyons, roads and trails during and after storms. On Mt. Graham, runoff and flooding may be accelerated from the burn scar of the 2017 Frye Fire, as vegetative cover has been lost and water, soil, rocks and woody debris may move swiftly downslope without warning.