Sundown RV Park

This is a very large, square gravel lot, with sites around perimeter. Best thing is paying online, getting the gate code and self check-in and out. Should be about $30 max. And frankly, at least site 14 want all that flat. Positive slope (up from back-in point).
They did give a senior discount.
A reviewer stated "quiet park". It is NOT quiet in the least. It sounds like you're camping on the I-70 median. Really noisy all hours you're likely to be awake or trying to get to sleep.

Quiet Park, security gated Enterance.
No sewer hookups. There are only 6 of the sites that offer sewer hookups and they have full timers in them.
There is a dump station on site, no water to rinse out hose.
No laundry or showers so if you are staying more than 2 nights you will have to go dump tanks as there is no way to conserve water usage by taking showers or doing laundry elsewhere.
We were there volunteering our services for 5 days, working on a house for a women's shelter. So needless to say we needed shower daily and laundry
The slips were nice and level. The park is small, well cared for, very clean.
The owner was very kind and accommodating. We had a bit of a repair job that set us back from leaving, needed an extra day to have a mobile service come do a repair.

We worked out of town for several months and stayed at Sundown RV. Really quiet place not a lot of traffic gas station right there across the street if we needed anything the staff at the gas station are also awesome.Dennis Nancy everybody was great.
The boys and I had a lot of good nights out there strumming the guitar, cooking steaks and shrimp lobster eating salmon underneath their cabana really a great place. If we’re ever back in Salina, this is where we will be staying.

You get what you pay for. That being said, it's ok for overnight but be careful when you drive in because it's up hill and if you have a bicycle rack or any other rack on the back of your camper, it will drag on the road. Also, if your camper is much more that 20', it will stick out in the road as you wait on the gate to open.
Sites are not level. Would I stay here again? NO!

No bathrooms. No showers. No manicured grounds. No front desk. Just a level clean gravel lot with electric/water hookups and plenty of space for easy entry/exit. Dumping station also available. Great place to overnight right by I-70. Gas station across the street. Five stars for what it is.