Missouri State Parks · Missouri
Onondaga Cave State Park
Missouri State Parks · Missouri, United States
- Sites
- 66
- Season
- Year-round
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- Yes
- Dump station
- Yes
- Laundry
- Yes
- Pets
- Yes
- Elevation
- 699 ft
- Dark sky
- Bortle class 2
- Cell coverage
- Verizon weak · T-Mobile none · AT&T none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Nearest town
- Leasburg
- Address
- 7556 Highway H, Leasburg, MO 65535-9136
- Phone
- 573-245-6576
- Activities
- Biking, Boating, Canoeing/Kayaking, Cave Tours, Fishing, Hiking
64 numbered sites are mapped one by one - the site map below shows each with its facts and pictures.
Site map
64 numbered sites are mapped one by one on the imagery, with the operator's own facts and pictures for each site where it publishes them. Tap a site to rate it, keep a note and add your own photos; press and hold the map for a pin of your own. Your ratings, notes, pins and photos are kept with the campground on your Saved list, the same list the camping map and the drive page keep.
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About
Onondaga Cave State Park is a Missouri State Park with 66 campsites available for camping.
Missouri State Parks says electric hookups are available year-round at most state parks, while water and showers are usually available in the on-season, typically April 1 through October 31. Reservations run April 1 to October 31 on icampmo, the park's on-season. The campground also contains a playground and an amphitheater, where nature programs are presented during the on-season.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 39° | 27° | 3° | 67° | 11 of 11 |
| February | 49° | 30° | -6° | 77° | 9 of 11 |
| March | 60° | 41° | 14° | 82° | 6 of 11 |
| April | 69° | 47° | 32° | 86° | 1 of 11 |
| May | 78° | 61° | 43° | 89° | 0 of 11 |
| June | 87° | 68° | 53° | 100° | 0 of 11 |
| July | 88° | 72° | 63° | 99° | 0 of 11 |
| August | 85° | 70° | 60° | 98° | 0 of 11 |
| September | 84° | 65° | 50° | 98° | 0 of 11 |
| October | 68° | 49° | 32° | 85° | 0 of 10 |
| November | 58° | 39° | 14° | 77° | 4 of 10 |
| December | 48° | 33° | 11° | 68° | 9 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Trails nearby
- Harmon Springs Trailhead · 10 mi as the crow flies
Harmon Spring Spur 0.2 mi Hike · Drive there
All 294 trails in Mark Twain National Forest
Trailheads the Park Service and the Forest Service map, within 10 miles as the crow flies; each trail's page has its length, climbing and the Service's description.
Nearby campgrounds
- Berryman Campground · USDA Forest Service · 13 mi
- Meramec State Park · Missouri State Parks · 14 mi · 216 sites
- Red Bluff Campground · USDA Forest Service · 17 mi · 85 sites
- Hazel Creek Campground · USDA Forest Service · 19 mi
- Memorial Park Campground · City, County & Regional Parks · 25 mi · 25 sites
All public campgrounds in Missouri · Every state and province · Facts read from the operator 2026-08-22. Confirm fees, rules and current status with the operator before you go.