: Colorado River: Anglers have been reporting slow conditions, with most of the success being with smaller rainbow trout and brown trout. Water flow has measured at 1100 cfs in recent days. Within the next month, anglers should anticipate the brown trout getting ready for spawning. With that, keep in mind they will be territorial and strike anything big and bright that comes near. The best method for getting strikes is by floating the river on a boat.