The Lure Resort, located a mile east of Downieville, on highway 49 towards Sierra City, is a gem for anyone who wants to come visit Sierra County. It's located right on the river with great cabins and log camping tents. It's actually the first place I stayed at, when I came to Sierra County the first time.
Not only is is a great place to stay, but, they have a fabulous monthly newsletter. It's a treat when it shows up, even for me who live here, as it's always full of goodies-- from great photos, to great information to coupons for local businesses, or savings on a stay at the Lure. If you want to keep an eye on what is going on up here (like, the opener of the trout season is this upcoming Saturday, April 26!), I recommend you subscribe to it. I know I enjoy the arrival in my inbox.