Mercer Caverns

Visitors enjoy the convenience of walkways and electric lighting. Cave tours last about 45 minutes. The cavern temperature is 55 degrees year-round. The tour covers about a quarter mile on walkways and stairs. There are a total of 440 steps, 208 down into the caverns and 232 up out of the caverns. Visitors descend a total of 160 vertical feet below the entrance.

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Longhorn Cavern State Park

The park features historical and nature study. Located in the heart of the Highland Lakes, Longhorn Cavern is near Inks Lake State Park which offers camping and lodging.

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NCA Directory

America's Best Showcaves!

Just about everywhere you go, you can explore the underground wonders of a nearby NCA showcave.

Midwestern Showcaves

    

Members: The directory is available for download in pdf format under Member Resources.

Alabaster Caverns State Park
217036 SH 50A
Freedom, OK  73842
580-621-3381
Black Hills Caverns
2600 Cavern Rd.
Rapid City, SD  57702
605-343-0542
Blanchard Springs Caverns
Forest Road 1110A (off Hwy 14)
Mountain View, AR  72560
870-757-2211
Bluespring Caverns
1459 Bluespring Caverns Road
Bedford, IN  47421
812-279-9471
Bluff Dwellers Cave
954 Hwy 59 South
Noel, MO  64854
417-475-3666
Bridal Cave & Thunder Mountain Park
526 Bridal Cave Road
Camdenton, MO  65020
573-346-2676
Cave of The Mounds, National Natural Landmark
2975 Cave of the Mounds Road
Blue Mounds, WI  53517
608-437-3038
Cave Without A Name
325 Kreutzberg Rd.
Boerne, TX  78006
830-537-4212
Caverns of Sonora
P.O. Box 1196
Sonora, TX  76950
325-387-3105
Cosmic Cavern
6386 Hwy. 21 North
Berryville, AR  72616
870-749-2298
Crystal Cave, WI
W 965 State Road 29
Spring Valley, WI  54767
715-778-4414
Crystal Lake Cave
6684 Crystal Lake Cave Road
Dubuque, IA  52003
563-556-6451
Fantastic Caverns
4872 N. Farm Rd. 125
Springfield, MO  65803
417-833-2010
Forestville/Mystery Cave State Park
21071 County 118
Preston, MN  55965
507-937-3251
Indiana Caverns
1267 Green Acres Drive SW
Corydon, IN  47112
812-734-1200
Inner Space Cavern
4200 S. Interstate Hwy. 35, Exit 259
Georgetown, TX  78626
512-931-CAVE
Jacob's Cave
23114 Hwy. TT
Versalles, MO  65084
573-378-4374
Jewel Cave National Monument
11149 US Hwy 16
Custer, SD  57730
605-673-8300
Longhorn Cavern State Park
6211 Park Road 4 South
Burnet, TX  78611
512-715-9000
Marengo Cave National Landmark
400 E. State Road 64
Marengo, IN  47140
812-365-2705
Mark Twain Cave
300 Cave Hollow Road
Hannibal, MO  63401
573-231-1000
Marvel Cave
399 Indian Point Rd., Silver Dollar City
Branson, MO  65616
417-338-3894
Meramec Caverns
I-44, Exit 230. 1135 Hwy W
Stanton, MO  63079
573-HOT-CAVE
Natural Bridge Caverns
26495 Natural Bridge Caverns Rd.
Natural Bridge Caverns, TX  78266
210-651-6101
Niagara Cave
29842 County 30
Harmony, MN  55939
507-886-6606
Onondaga Cave & Cathedral Cave
7556 Hwy. H
Leasburg, MO  65535
573-245-6600
Onyx Cave
338 Onyx Cave Lane
Eureka Springs, AR  72632
479-253-9321
Rushmore Cave
13622 Hwy 40
Keystone, SD  57751
605-255-4467
Spook Cave
13299 Spook Cave Road
Mc Gregor, IA  52157
563-873-2144
Squire Boone Caverns/Village
100 Squire Boone Rd
Mauckport, IN  47142
812-732-4381
Stark Caverns
125 Cave Drive
Eldon, MO  65026
573-369-3306
Talking Rocks Cavern
423 Fairy Cave Lane
Branson West, MO  65737
417-272-3366
Twin Caves
3333 State Road 60E
Mitchell, IN  47446
812-849-3534
War Eagle Cavern on Beaver Lake
On Scenic Hwy 12, 25 min SE of Eureka Springs, 20 min W of Rogers
Rogers, AR  72756
479-789-2909
Wind Cave National Park
69911 US Hwy 385
Hot Springs, SD  57747
605-745-4600
Wyandotte Cave
7315 South Wyandotte Cave Road
Leavenworth, IN  47137
812-738-8232