Just to confirm something, don't let the term 'Forestry' camp sites scare you off. I just looked up one we have stayed at and find that the 'Forestry' sites now seem to be listed under the 'Sites and Trails' site as shown above.
This is where we used to stay, it's shown on the website as 'Old Hedley Road' You can't see it on the Streetview image, but the sites are right on a really nice river. We even panned for gold there with the kids. Notice how the vegetation is getting very dry? This would be 'semi-arid' but a few miles farther on this road, the precip. drops to below 10" per year, making it a desert!