This photo is from the Kongakut - Captain Kirk - most skilled aviator I have ever flown with (besides being a great guy).
Kirk wants every inch of cobble bar for our take off roll! No weather reporting on the north slope (and of course no river gages), not even radar (Kaktovik and Deadhorse do report current conditions) so Kirk uses windy.com. Pretty cool site started by some dudes in Czechia - takes a bit of time to get it dialed, but I use it a lot.
KONGD610661C185Cessna 185Kirk SweetsirKongakut River