NSS IO Committee Database

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IO Serial Number List [Listed by IO Type / Name]
Af| 500001 | Grateful Cavers
Af| 500002 | Speleospa Affinity Group
GR| 000420 | Anthros Costa Rica Grotto
GR| 000463 | Arbuckle Mountains Grotto
GR| 000228 | Armpit Grotto
GR| 000232 | Athens Speleological Society
GR| 000404 | Augusta Cave Masters
GR| 000320 | Bald Eagle Grotto
GR| 000467 | Balincaguin Conservancy Grotto
GR| 000040 | Baltimore Grotto
GR| 000395 | Battlefield Area Troglodyte Soc
GR| 000433 | Bear River Grotto
GR| 000304 | Bexar Grotto
GR| 000083 | Birmingham Grotto
GR| 000080 | Bloomington Indiana Grotto
GR| 000111 | Blue Grass Grotto
GR| 000180 | Blue Ridge Grotto
GR| 000035 | Boston Grotto
GR| 000219 | Boston Mountain Grotto
GR| 000441 | Branson Area Tri-Lakes Grotto
GR| 000451 | Bryson City Grotto
GR| 000272 | Bucks County Grotto
GR| 000026 | Cascade Grotto
GR| 000464 | Cave Hill Grotto
GR| 000387 | Central Alabama Grotto
GR| 000106 | Central Arizona Grotto
GR| 000093 | Central Connecticut Grotto
GR| 000375 | Central Florida Grotto
GR| 000060 | Central Indiana Grotto
GR| 000252 | Central New Jersey Grotto
GR| 000042 | Central Ohio Grotto
GR| 000152 | Central Oklahoma Grotto
GR| 000448 | Central Region Arkansas Grotto
GR| 000006 | Charleston Grotto
GR| 000020 | Charlottesville Grotto
GR| 000067 | Chattanooga Grotto
GR| 000091 | Chouteau Grotto
GR| 000454 | Clarksville Underground
GR| 000285 | Clayton County Cavers
GR| 000005 | Cleveland Grotto
GR| 000416 | Clock Tower Grotto
GR| 000465 | COBRA Grotto
GR| 000407 | Cochise County Cavers
GR| 000033 | Colorado Grotto
GR| 000459 | Colorado Western Slope Grotto
GR| 000235 | Commander Cody Caving Club
GR| 000419 | Crescent City Cavers
GR| 000392 | Cullman Grotto
GR| 000477 | Daedalus Cavers Grotto
GR| 000076 | Dallas-Fort Worth Grotto
GR| 000366 | Dayton Underground Grotto
GR| 000409 | Desert Dog Troglodytes
GR| 000293 | Detroit Urban Grotto
GR| 000148 | Diablo Grotto
GR| 000002 | District of Columbia Grotto
GR| 000116 | Dogwood City Grotto
GR| 000474 | Druid City Cavers
GR| 000069 | East Tennessee Grotto
GR| 000337 | Eastern Indiana Grotto
GR| 000189 | Escabrosa Grotto
GR| 000178 | ESSO Grotto
GR| 000021 | Evansville Metropolitan Grotto
GR| 000338 | Fairfax Underground Network
GR| 000382 | Flint River Grotto
GR| 000193 | Flittermouse Grotto
GR| 000068 | Florida Speleological Society
GR| 000283 | Franklin County Grotto
GR| 000226 | Frederick Grotto
GR| 000105 | Front Range Grotto
GR| 000361 | Front Royal Grotto
GR| 000267 | Gadsden Grotto
GR| 000140 | Gem State Grotto
GR| 000229 | Germany Valley Grotto
GR| 000452 | Great Lakes Cavers
GR| 000273 | Greater Allentown Grotto
GR| 000110 | Greater Cincinnati Grotto
GR| 000146 | Greater Houston Grotto
GR| 000282 | Greater Randolph (GROSS)
GR| 000256 | Green River Grotto
GR| 000191 | Greenbrier Grotto
GR| 000479 | GUAD Grotto
GR| 000429 | Gypsy Underground Grotto
GR| 000356 | Hawaii Grotto
GR| 000318 | Helderberg-Hudson Grotto
GR| 000233 | Hole-in-the-Wall Grotto
GR| 000314 | Huntingdon County Cave Hunters
GR| 000063 | Huntsville Grotto
GR| 000019 | Iowa Grotto
GR| 000423 | Jackson County Grotto
GR| 000343 | James River Grotto
GR| 000412 | JUST Cavers
GR| 000165 | Kansas City Area Grotto
GR| 000303 | Kansas Speleological Society
GR| 000129 | Little Egypt Grotto
GR| 000342 | Little Rock Grotto
GR| 000131 | Louisville Grotto
GR| 000327 | Loyalhanna Grotto
GR| 000317 | Lubbock Area Grotto
GR| 000266 | Madison University Student Grotto
GR| 000184 | Meramec Valley Grotto
GR| 000195 | Mesilla Valley Grotto
GR| 000017 | Met Grotto
GR| 000237 | Miami Valley Grotto
GR| 000168 | Michigan Interlakes Grotto
GR| 000378 | Middle Georgia Grotto
GR| 000082 | Middle Mississippi Valley Gr.
GR| 000286 | Middle Ozark Lower Earth Soc. MOLES
GR| 000471 | Minnesota Caving Club
GR| 000298 | Minnesota Speleological Survey
GR| 000048 | Missouri Sch. Mines Spelunkers Club
GR| 000124 | Monongahela Grotto
GR| 000355 | Monroe County Cavers
GR| 000297 | Montgomery Grotto
GR| 000114 | Mother Lode Grotto
GR| 000234 | Mountain Empire Grotto
GR| 000199 | Mountain State Grotto
GR| 000335 | Mule Mountain Caving Club
GR| 000049 | Nashville Grotto
GR| 000363 | Near Normal Grotto
GR| 000436 | New Jersey Tri-State Spel. Society
GR| 000453 | New Mexico Tech Student Grotto
GR| 000224 | New River Valley Grotto
GR| 000188 | Niagara Frontier Grotto
GR| 000014 | Nittany Grotto
GR| 000411 | Northern Arizona Grotto
GR| 000163 | Northern Colorado Grotto
GR| 000200 | Northern Indiana Grotto
GR| 000457 | Northern Nevada Grotto
GR| 000037 | Northern New Jersey Grotto
GR| 000428 | Northern Rocky Mountain Grotto
GR| 000417 | Ohio Cavers and Climbers
GR| 000123 | Oregon Grotto
GR| 000346 | Oregon High Desert Grotto
GR| 000230 | Ozark Highlands Grotto
GR| 000425 | PAAMUL - Gruta de
GR| 000064 | Paha Sapa Grotto
GR| 000339 | Pajarito Grotto
GR| 000135 | Parkersburg Area Grotto
GR| 000089 | Pecos Valley Grotto
GR| 000444 | Pennsylvania Inner-Earth Grotto
GR| 000300 | Permian Basin Speleological Society
GR| 000008 | Philadelphia Grotto
GR| 000369 | Pigeon Mountain Grotto
GR| 000380 | Pine Mountain Grotto
GR| 000011 | Pittsburgh Grotto
GR| 000480 | RAT Grotto
GR| 000460 | Red Canyon Grotto
GR| 000473 | Redwood Grotto
GR| 000015 | Rensselaer Outing Club
GR| 000004 | Richmond Area Spel. Soc.
GR| 000472 | River City Grotto
GR| 000144 | Rock River Speleological Soc.
GR| 000462 | Rockcastle Regional Grotto
GR| 000478 | Roubidoux Grotto
GR| 000413 | Saint Joseph Valley Grotto
GR| 000041 | Salt Lake Grotto
GR| 000205 | San Diego Grotto
GR| 000079 | San Francisco Bay Chapter of NSS
GR| 000062 | San Joaquin Valley Grotto
GR| 000088 | Sandia Grotto
GR| 000107 | SEMO Grotto
GR| 000426 | Seven Valleys Grotto
GR| 000379 | Sewanee Mountain Grotto
GR| 000386 | Shascade Caving Society
GR| 000289 | Shasta Area Grotto
GR| 000372 | Shawangunk-Catskill Area Grotto
GR| 000466 | Sierra Blanca Grotto
GR| 000439 | Silver Sage Grotto
GR| 000468 | Six Ridges Grotto
GR| 000186 | Sligo Grotto
GR| 000130 | Smoky Mountain Grotto
GR| 000359 | South Carolina Interstate Grotto
GR| 000424 | Southern Arizona
GR| 000016 | Southern California Grotto
GR| 000241 | Southern Colorado Mountain
GR| 000218 | Southern Nevada Grotto
GR| 000402 | Southport Chronic Cavers
GR| 000403 | Spencer Mountain Grotto
GR| 000455 | Springfield Plateau Grotto
GR| 000248 | Standing Stone Grotto
GR| 000149 | Stanislaus Speleo. Assn.
GR| 000435 | Stonewall Cavers
GR| 000408 | Sub-Urban Chicago Grotto
GR| 000280 | Syracuse University Outing
GR| 000295 | Tampa Bay Area Grotto
GR| 000475 | Team Poseidon
GR| 000187 | Tidewater Grotto
GR| 000323 | Timberline Grotto
GR| 000214 | Timpanogos Grotto
GR| 000456 | TRA Grotto
GR| 000345 | Triangle Troglodytes
GR| 000316 | Tri-State Grotto
GR| 000059 | Tulsa Regional OK Grotto
GR| 000315 | Upper Cumberland Grotto
GR| 000034 | UT Grotto
GR| 000470 | Utah Grotto
GR| 000394 | Vermont Cavers Association
GR| 000442 | Virginia Highlands Grotto
GR| 000003 | VPI Cave Club
GR| 000476 | Walker Mountain Grotto
GR| 000305 | Wasatch Grotto
GR| 000243 | West Virginia Univ. Student Grotto
GR| 000259 | Western Indiana Grotto
GR| 000294 | Western Maryland Grotto
GR| 000108 | White Sands Grotto
GR| 000216 | Willamette Valley Grotto
GR| 000099 | Windy City Grotto
GR| 000101 | Wisconsin Speleological Society
GR| 000268 | Wittenberg U. Spel Soc (Stu)
GR| 000092 | York Grotto
RE| 100009 | Arizona Regional Assn. (ARA)
RE| 100003 | Mid-Appalachian Region (MAR)
RE| 100007 | Mississippi Valley-Ozark Reg (MVOR)
RE| 100002 | Northeastern Regional Org. (NRO)
RE| 100011 | Northwest Caving Association (NCA)
RE| 100012 | Rocky Mountain Region
RE| 100004 | Southeastern Regional Assn. (SERA)
RE| 100008 | Southwestern Region (SWR)
RE| 100005 | Texas Speleological Assn. (TSA)
RE| 100001 | Virginia Region (VAR)
RE| 100006 | Western Region
SS| 300015 | American Spelean History Assn
SS| 300022 | Arts and Letters Section
SS| 300001 | Biology Section
SS| 300004 | Cave Diving Section (CDS)
SS| 300002 | Cave Geology & Geography
SS| 300011 | Cave Photography Section
SS| 300014 | Communications & Electronics
SS| 300019 | Digging Section
SS| 300005 | Human Sciences Section
SS| 300021 | Medical Section
SS| 300018 | Speleophilatelic Section
SS| 300010 | Survey & Cartography Section
SS| 300003 | Vertical Section
SS| 300017 | Video Section
Su| 20021 | Florida Cave Survey
SV| 200011 | Alabama Cave Survey
SV| 200025 | Arizona Cave Survey
SV| 200015 | Colorado Cave Survey
SV| 200021 | Florida Cave Survey
SV| 200004 | Georgia Speleological Survey
SV| 200024 | Great Basin Speleological Survey
SV| 200019 | Idaho Cave Survey
SV| 200020 | Indiana Cave Survey
SV| 200023 | Indiana Speleological Survey
SV| 200005 | Tennessee Cave Survey
SV| 200022 | Utah Cave Survey
SV| 200008 | Virginia Speleological Survey
SV| 200009 | West Virginia Speleological Sv

Not listed? it may have been deactivated by the NSS IO Committee. Please contact the IO Committee for assistance.

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NSS IO Database Homepage

Many questions are answered on the NSS IO Committee website or
Policy for Internal Organizations, as approved by the NSS Board of Governers.
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NSS IO Database by Eric McMaster NSS #40642LF