Rick- IIRC there are a couple of private pay to dig sites down there out of Plush. Also a big public area that is free. Contact the Lakeview BLM office for a brochure on the public area and directions. I have not been down there since the early 70's, but most were in the clear yellow stones, thumb size, to the joint. Look around the base of sagebrush, but keep a harp eye out for snakes. I once found one curled up in the greenery of a piece of sage brush a foot off the ground. I always used a rock hammer to pull them out from under the sage and other growth. You will occasionally find one with a red or green hue to it, those are the real finds and the most value for the buck.
The pay sites will probably be the best bet if you are time limited, and they will have everything. The area is out of civilization aways, so be sure the rig is in good shape and have plenty of fluids for the people and pets.