The road up mill creek is closed for maintenance until October 30.. we found out the hard way :)
Nice dirt road, about 15 or so "sites" which are just pull-outs and the occasional fire-ring. A few signs here and there forbidding parking probably to keep erosion down and let the scrubby desert do its thing. The only downside was that you can hear the highway fairly clearly while you sleep. All in all - a chill spot to pull off for the night.
The photos that show up above for this campground are actually of Santa Rosa LAKE which is about 20 minutes north on 91. The campground/RV park at this address is definitely more of an RV park. It is very close to I-40, there are streetlight-style lights throughout, and not much in the way of primitive camping. But if you're an RV-er you may love the amenities here, I think there is WiFi and a pool! We are tent campers and continued on up to the lake. The lake is operated by the State Park system. As of October 1, 2020 reservations are required for all state park sites, and they are only open to NM residents! We bent the rules as it was 2 am, and the rangers were cool about it in the morning. There are 2 campgrounds at the lake (Rocky Point and Juniper Park) - only Rocky Point was open currently, presumably for COVID reasons.
Great tidy campground, the Big Piney River is a beautiful spot for a swim. Good clean bathroom facilities and water. A little crowded the first weekend of October, but still easy to find a spot.
Driving across Kansas can be long and tedious and I'm often looking for a place to primitive-car-camp on the cheap to get some sleep while crossing the country. This little lake worked perfectly for me. Not a huge detour from I-70 (maybe 20-30 minutes total) - I found the campground completely empty on a Monday night in early September and woke up with a picnic table and a fire pit next to a calm lake with jumping fish and just a few local fisherman visible in various spots. There were no annoying gates or camp managers or $ charges, and that's perfect for my purposes.. Made a cup of coffee by the lake and got back on the road. I didn't see bathroom/shower/electrical or any other "advanced" services so this is more for those of us who just need a peaceful place to tent camp.