The trail descends into a dry wash - a wide, sandy channel cut between sandstone walls. Easy walking, flat ground, good time. Except the sky to the north has gone dark, and these channels flood without warning.
You're halfway across when you hear it: a distant rumble that isn't thunder.
Elecciones
1
Run. Get to high ground on the far side. Now.
sin requisito
Éxito
You sprint across the remaining wash and scramble up the far bank as a wall of brown water rounds the upstream bend. It's knee-deep where you were standing thirty seconds ago. Your heart hammers for ten minutes. You made it.
Fracaso
You run, but the sand is soft and your boots dig in. The water arrives faster than you expected - ankle deep, then shin deep. You make it to the bank soaking wet, pack waterlogged, pride damaged. Everything important survived. You think.
2
Turn back the way you came. The near bank is closer and you know the footing.
sin requisito
Éxito
You reverse course and climb the bank you just descended. The water arrives two minutes later - fast, brown, carrying debris. From the top of the bank you watch logs and tumbleweeds career past. You'll cross when it subsides. Smart, if slow.
Fracaso
You scramble back toward the near bank but the soft sand on the slope collapses under your weight. You slide back down twice before clawing your way up. The water is lapping at your heels by the time you reach solid ground.
3
That rumble - you can estimate the water's arrival time from the sound profile and channel geometry.
The sound is echoing off the channel walls, which means the water is still at least two bends upstream - four minutes, maybe five. Plenty of time to cross at a measured pace and pick a good ascent point on the far bank. You walk, not run, choosing your footing carefully. You're on the far bank with a minute to spare, dry and calm, when the flood arrives. Other travelers would have panicked. You planned.
Fracaso
You estimate four minutes based on the echo, but the channel narrows upstream - the water accelerates through the bottleneck faster than your calculation predicted. You're still crossing when the leading edge hits. Only ankle deep, but the current is stronger than it looks. You stumble, catch yourself, and reach the bank wet to the knees.