Survey Index H
| CAVE | REGION/EXTENSION | REFERENCE |
|---|---|---|
| Hagg Beck Sink | 254:19 | |
| Hagg Gill Pot | downstream passages | 126:11 |
| Halkyn Mines | 149:21,22 | |
| Hallowe’en Rift | 212:11 | |
| Hammer Pot | The Water Butt | 207:28 |
| Hamps & Manifold Valleys | caves of | 135:18 |
| Hangman’s Hole | 88:27 | |
| Hangover Hole | 120:8 | |
| Harelawhill Mine | 108:15 | |
| Harland Pot | 127:10 | |
| Harrogate Hole | 178:28 | |
| location map | 167:33 | |
| Hartle Dale Bottom Mine | 293:35 | |
| Hatley Rocks Holes | 189:16 | |
| Hawaii | see under USA | |
| Hazelnut Swallet | 145:12 | |
| Hazeltop Cave | 290:45 | |
| Heidbanger Hole | 95:25 | |
| Hell Complex (Green Holes) | 208:20-1 | |
| Hensler’s Pot | 163:21, 175:21 | |
| Herbert’s Hole | 191:13 | |
| Hermits Cave | 83:26 | |
| High Pasture Cave | 25:11 | |
| Hillier’s Cave | 51:35 | |
| Link Series | 22:19 | |
| Hoarthorns Wood Swallet | 118:16 | |
| Hobb’s Quarry (Penwyllt) | proposed extensions | 24:34, 31:42 |
| Hobnail Hole | 255:30 | |
| Hole in the Floor (Langstroth Pot) | 210:8, 231:32 | |
| Hole in the Road | 52:5 | |
| Home Close Hole | 247:30 | |
| Far Side Gallery | 252:10 | |
| Hope’s Nose Submarine Caves | 80:19 | |
| Howgill Sink | 12:9 | |
| Hudgill Burn Mine Caverns | 244:32 | |
| Hungary | area map | 108:24 |
| Hunter’s Hole | 168:34 | |
| Hunters’ Lodge Inn Sink | 168:35, 174:28,29 | |
| relationship map | 168:34 |