Below are sky quality measurements for various locations in Missouri.  The data was extracted from the "World Atlas 2015" located at http://lightpollutionmap.info. 

The following information will better help you understand the data columns:   (Enjoy this fun map: Missouri Dark Skies Map)

Column Contents
Type State = Missouri State Parks
SQM Mag/arc sec2 (the higher the number, the darker the location.  IDA has a minimum 21.25 measurement to qualify for designation as a "Dark Sky Park").  Other criteria must be met.
Bortle Another method of measuring sky brightness. Refer to https://darkskymissouri.org/learn/bortle-scale

SEARCHABLE DATABASE OF SKY QUALITY MEASUREMENTS BY LOCATION IN MISSOURI:

Click on any column header to sort your list. You can enter text in the search box to filter your view.

Loading data...
Region Type Name SQM Bright Limiting Abright Ratio Bortle Elev
Southeast State Current River State Park 21.96 6.600 0.18 7 0.039 2 286
Southeast State Echo Bluff State Park 21.96 6.600 0.18 7 0.038 2 218
Southeast State Roger Pryor Pioneer Backcountr 21.96 6.600 0.18 7 0.038 2 293
Southeast USA Ozark National Scenic Riverway 21.95 6.600 0.18 8 0.049 2 181
Lakes State Bryant Creek SP 21.93 6.600 0.18 12 0.068 2 265
Southeast State Montauk State Park 21.91 6.600 0.19 15 0.087 2 377
Southeast State Sam A. Baker State Park 21.91 6.600 0.19 14 0.082 2 171
Southeast State Johnson's Shut-Ins State Park 21.89 6.600 0.19 18 0.106 2 263
Southeast State Dillard Mill State Historic Si 21.88 6.600 0.19 20 0.118 3 305
Southeast State Grand Gulf State Park 21.88 6.600 0.19 20 0.114 3 258
Northeast State Mark Twain Birthplace SHS 21.87 6.600 0.19 21 0.124 3 181
Northeast State Mark Twain SP 21.87 6.600 0.19 21 0.124 3 181
Northeast State Locust Creek Covered Bridge SH 21.86 6.600 0.20 24 0.142 3 214
Northeast State Union Covered Bridge SHS 21.85 6.600 0.20 26 0.149 3 224
Central State Annie and Abel Van Meter State 21.84 6.600 0.20 27 0.160 3 235
Northeast State Battle of Athens SHS 21.84 6.600 0.20 27 0.158 3 204
Northeast State Pershing SP 21.83 6.500 0.20 28 0.166 3 219
Lakes State Stockton SP 21.83 6.500 0.20 28 0.166 3 265
Southeast State Taum Sauk Mountain State Park 21.83 6.500 0.21 36 0.208 3 541
Central State Boone's Lick State Historic Si 21.81 6.500 0.20 32 0.189 3 209
Central State Sappington Cemetery State Hist 21.80 6.500 0.21 34 0.199 3 225
Southeast State Big Oak Tree State Park 21.78 6.500 0.21 39 0.228 3 90
Southeast State Towosahgy State Historic Site 21.78 6.500 0.21 38 0.221 3 90
Southeast State Lake Wappapello State Park 21.75 6.500 0.22 44 0.254 3 117
Lakes State Prairie SP 21.75 6.500 0.22 45 0.263 3 274
Central State Arrow Rock State Historic Site 21.74 6.500 0.22 45 0.265 3 219
Kansas City State Big Lake SP 21.74 6.500 0.22 47 0.272 3 270
Southeast State Onondaga Cave State Park 21.70 6.500 0.23 54 0.317 3 265
Kansas City State Battle of Island Mound State H 21.69 6.500 0.23 56 0.327 3 267
St. Louis State Hawn State Park 21.64 6.500 0.24 67 0.391 4 206
Northeast State Iliniwek Village SHS 21.63 6.400 0.24 70 0.409 4 157
Southeast State Elephant Rocks State Park 21.62 6.400 0.24 71 0.414 4 389
Lakes State Harry S Truman SP 21.62 6.400 0.24 72 0.422 4 215
Lakes State Roaring River SP 21.62 6.400 0.24 72 0.419 4 423
Lakes State Pomme de Terre SP 21.61 6.400 0.25 74 0.430 4 281
Northeast State Graham Cave SP 21.60 6.400 0.25 77 0.450 4 226
Lakes State Big Sugar Creek SP 21.58 6.400 0.25 80 0.470 4 357
Northeast State Gen. John J. Pershing Boyhood 21.53 6.400 0.26 92 0.539 4 248
Lakes State Bennett Spring SP 21.52 6.400 0.27 95 0.556 4 344
Lakes State Lake of the Ozarks SP 21.52 6.400 0.26 96 0.560 4 231
Kansas City State Wallace SP 21.51 6.400 0.27 97 0.567 4 298
Southeast State Morris State Park 21.46 6.400 0.28 111 0.648 4 89
Southeast State Bollinger Mill State Historic 21.45 6.400 0.28 112 0.655 4 121
Central State Katy Trail, McKittrick Trailhe 21.44 6.400 0.29 115 0.671 4 159
Northeast State Crowder SP 21.42 6.300 0.29 120 0.703 4 234
Northeast State Long Branch SP 21.41 6.300 0.29 122 0.715 4 254
St. Louis State Washington State Park 21.39 6.300 0.30 130 0.760 4 256
St. Louis State Meramec State Park 21.38 6.300 0.30 132 0.772 4 193
Central State Bothwell Lodge State Historic 21.35 6.300 0.31 140 0.629 4 257
Southeast State Trail of Tears State Park 21.30 6.300 0.33 154 0.901 4 164
Northeast State Wakonda SP 21.27 6.300 0.34 163 0.956 4 162
Northeast State Thousand Hills SP 21.26 6.300 0.34 169 0.986 4 274
Kansas City State Lewis and Clark SP 21.21 6.200 0.36 185 1.080 4 252
Northeast State Cuivre River SP 21.20 6.200 0.36 186 1.090 4 212
St. Louis State St. Francois State Park 21.18 6.200 0.37 195 1.140 4 281
Lakes USA George Washington Carver Natio 21.15 6.200 0.38 204 1.190 4 328
Lakes State Ha Ha Tonka SP 21.13 6.200 0.38 210 1.230 4 320
Kansas City State Confederate Memorial SHS 21.07 6.200 0.40 232 1.350 4 244
Central State Finger Lakes State Park 21.00 6.100 0.43 257 1.500 4 224
St. Louis State Robertsville State Park 20.91 6.100 0.47 297 1.740 4 174
Kansas City State Watkins Woolen Mill SP and SHS 20.88 6.000 0.48 307 1.800 4 277
Central State Clark's Hill/Norton State Hist 20.84 6.000 0.50 325 1.900 4 172
St. Louis State St. Joe State Park 20.80 6.000 0.52 346 2.020 4 314
Kansas City State Weston Bend SP 20.77 6.000 0.53 360 2.100 4 285
Southeast State Hunter-Dawson State Historic S 20.69 5.900 0.57 399 2.330 4 93
Kansas City State Battle of Lexington State Hist 20.61 5.900 0.61 443 2.590 4 256
Lakes State Table Rock SP 20.54 5.800 0.66 488 2.850 4 281
Central State Rock Bridge Memorial State Par 20.26 5.700 0.85 676 3.950 5 233
Kansas City State Knob Noster SP 20.19 5.600 0.73 733 4.280 5 249
St. Louis State Dr. Edmund A. Babler Memorial 19.99 5.500 1.09 917 5.360 5 203
St. Louis State Route 66 State Park 19.94 5.500 1.15 975 5.700 5 219
Kansas City State Katy Trail SP - Rock Island Sp 19.67 5.300 1.46 1290 7.560 5 190
St. Louis State Castlewood State Park 19.39 5.100 1.90 1730 10.100 6 161
St. Louis State Edward "Ted" and Pat Jones-Con 19.21 4.900 2.24 2070 12.100 6 128
Central State Missouri State Museum 19.13 4.900 2.40 2220 13.000 6 180
Central State Jewell Cemetery State Historic 18.95 4.700 2.85 2680 15.700 6 225
Kansas City USA Harry S Truman National Histor 18.51 4.400 4.25 4080 23.900 7 318
Kansas City State Thomas Hart Benton Home and St 17.67 3.700 9.24 9070 53.000 8 290
St. Louis USA Gateway Arch National Park 17.38 3.400 17.38 11900 69.400 9 127