Once you turn off Hywy 95 on to Lost Valley Reservoir Road (about 16 miles North of Council), you will reach a Y in the well kept gravel road. If you turn left, you will come to Cold Spring Campground. There are RV/trailer and tent sites available for a small daily fee. There are campfire sites, hiking trails, toilets and water from a hand pump. You will need to pack out your own garbage as there are no dumpsters. Not a bad place but you are still about 1/2 mile away from the Lost Valley Reservoir.
If you return to the Lost Valley Reservoir road, you can continue on to the Reservoir. After about 1/2 mile, you will see the lake off to your right. There are camp sites all along this stretch of the lake with direct access to the lake. A few sites have a common outhouse with no running water. Along this side of the lake there is also a boat launch area, but I believe this is a 'No Wake Lake'. Check local burn bans, and pack your garbage out.
The road continues along the lake edge and over a small dam. There are several small, dirt access roads that lead to the lakes edge with camping sites at the end of each. Several roads are VERY rough and have deep ruts in them, and I personally wouldn't risk driving them without a vehicle that has plenty of clearance.
The lake is small and as the summer progresses and water is drained from the reservoir, it shrinks. I prefer camping here until about the 1st or 2nd week of August. After this, the water levels drop drastically and green algae begins to accumulate around the lakes edge. There are small perch for fishing, but I did not catch any big enough to keep. We camped here in mid-July this year and had a campfire each night.
Beautiful views, great hiking, refreshing water, and several families had ATV's. Huckleberries are usually ripe 1st/2nd weeks of August. Very relaxing. Enjoy.