Fishing Conditions Flows on the Trinity were increased to 900 cfs at Lewiston with flows expected to be 1,500 cfs tomorrow making the river very high and a bit dangerous to wade. We will be returning for steelhead fishing in the fall. The majority of our guests reschedule early as availability for the best steelhead guides fills well before the season peaks. Drop us a line for the latest on conditions as ShastaTrout guides are locals.