Once again opt for the smaller sizes. Guide Ron Hart has reported catching fish in the 16-20 inch range within the past week. The McCloud has also been decent for this time of year. Guide Mitchell Barrett does most of his trips on the McCloud River. He has reported people catching fish all day long with the early morning being better for catching the big fish.
Most reports indicate using mayfly or caddis nymph patterns.
Princes, PT's, Copper-johns, birdnests, and the like. For dry patterns use Humphies, stimulators, and Royal Whulffs. Once again the flows are similiar to that of the Sac, so fish it the same way. At this time of year the river tends to have a lot of growth in it. The moss and weed are starting to cover things, so play it safe.