31:
133:
as "a most important woodland in the north of the county lying on poorly drained soils derived from underlying clay-with-flints". The dominant trees are oak and hornbeam. Ponds have unusual plant species, and the site is rich in fungi and
580:
38:
288:
158:
213:
93:
181:
237:"Purple Emperor (Apatura iris) flight period survey as part of the Hertfordshire Purple Emperor SAP 2011 with additional notes on Middlesex sightings"
585:
541:
56:
279:
123:
107:
22:
272:
481:
476:
416:
361:
188:
265:
441:
236:
257:
456:
321:
311:
497:
80:
466:
517:
421:
8:
346:
341:
331:
590:
426:
381:
356:
376:
522:
512:
471:
446:
406:
351:
527:
507:
451:
436:
336:
326:
130:
306:
143:
50:
574:
556:
543:
502:
391:
316:
292:
119:
43:
401:
396:
366:
129:
The wood is ancient in origin and ecologically diverse. It is described by
287:
146:
butterflies have been reported in Watery Grove in the north of the site.
139:
149:
There is access by a footpath which is a continuation of
Chadwell Road.
386:
187:. Sites of Special Scientific Interest. Natural England. Archived from
135:
461:
431:
411:
115:
111:
30:
159:
List of Sites of
Special Scientific Interest in Hertfordshire
234:
242:. Hertfordshire and Middlesex Wildlife Trust. p. 3
216:. Sites of Special Scientific Interest. Natural England
581:
Sites of
Special Scientific Interest in Hertfordshire
572:
273:
280:
266:
176:
174:
29:
106:is a 120.8-hectare (299-acre) biological
235:Liz Goodyear; Andrew Middleton (2012).
171:
586:Forests and woodlands of Hertfordshire
573:
261:
289:Sites of Special Scientific Interest
124:North Hertfordshire District Council
108:Site of Special Scientific Interest
23:Site of Special Scientific Interest
13:
206:
14:
602:
482:Wormley-Hoddesdonpark Wood South
477:Wormley-Hoddesdonpark Wood North
228:
1:
164:
122:. The planning authority is
7:
152:
10:
607:
457:Turnford and Cheshunt Pits
322:Ashridge Commons and Woods
182:"Knebworth Woods citation"
490:
299:
138:. Breeding birds include
89:
79:
71:
63:
49:
37:
28:
21:
498:Castle Lime Works Quarry
387:Oddy Hill and Tring Park
214:"Map of Knebworth Woods"
503:Downfield Pit, Westmill
467:Water End Swallow Holes
114:, immediately south of
518:Moor Mill Quarry, West
422:Sawbridgeworth Marsh
194:on 24 September 2015
553: /
442:Thorley Flood Pound
347:Croxley Common Moor
342:Bricket Wood Common
332:Benington High Wood
18:
557:51.8857°N 0.2172°W
427:Sherrardspark Wood
382:Northaw Great Wood
357:Great Hormead Park
16:
536:
535:
377:Moor Hall Meadows
101:
100:
598:
568:
567:
565:
564:
563:
562:51.8857; -0.2172
558:
554:
551:
550:
549:
546:
523:Oughtonhead Lane
513:Little Heath Pit
472:Whippendell Wood
447:Tring Reservoirs
407:Roughdown Common
352:Frogmore Meadows
282:
275:
268:
259:
258:
252:
251:
249:
247:
241:
232:
226:
225:
223:
221:
210:
204:
203:
201:
199:
193:
186:
178:
59:
33:
19:
15:
606:
605:
601:
600:
599:
597:
596:
595:
571:
570:
561:
559:
555:
552:
547:
544:
542:
540:
539:
537:
532:
528:Westwood Quarry
508:Hillcollins Pit
486:
452:Tring Woodlands
437:Therfield Heath
372:Knebworth Woods
337:Blagrove Common
327:Ashwell Springs
295:
286:
256:
255:
245:
243:
239:
233:
229:
219:
217:
212:
211:
207:
197:
195:
191:
184:
180:
179:
172:
167:
155:
131:Natural England
104:Knebworth Woods
55:
17:Knebworth Woods
12:
11:
5:
604:
594:
593:
588:
583:
534:
533:
531:
530:
525:
520:
515:
510:
505:
500:
494:
492:
488:
487:
485:
484:
479:
474:
469:
464:
459:
454:
449:
444:
439:
434:
429:
424:
419:
417:Sarratt Bottom
414:
409:
404:
399:
394:
389:
384:
379:
374:
369:
364:
362:Hertford Heath
359:
354:
349:
344:
339:
334:
329:
324:
319:
314:
309:
307:Aldbury Nowers
303:
301:
297:
296:
285:
284:
277:
270:
262:
254:
253:
227:
205:
169:
168:
166:
163:
162:
161:
154:
151:
144:purple emperor
99:
98:
91:
87:
86:
83:
77:
76:
75:120.8 hectares
73:
69:
68:
65:
61:
60:
53:
51:Grid reference
47:
46:
41:
35:
34:
26:
25:
9:
6:
4:
3:
2:
603:
592:
589:
587:
584:
582:
579:
578:
576:
569:
566:
529:
526:
524:
521:
519:
516:
514:
511:
509:
506:
504:
501:
499:
496:
495:
493:
489:
483:
480:
478:
475:
473:
470:
468:
465:
463:
460:
458:
455:
453:
450:
448:
445:
443:
440:
438:
435:
433:
430:
428:
425:
423:
420:
418:
415:
413:
410:
408:
405:
403:
400:
398:
395:
393:
392:Patmore Heath
390:
388:
385:
383:
380:
378:
375:
373:
370:
368:
365:
363:
360:
358:
355:
353:
350:
348:
345:
343:
340:
338:
335:
333:
330:
328:
325:
323:
320:
318:
317:Amwell Quarry
315:
313:
312:Alpine Meadow
310:
308:
305:
304:
302:
298:
294:
293:Hertfordshire
290:
283:
278:
276:
271:
269:
264:
263:
260:
238:
231:
215:
209:
190:
183:
177:
175:
170:
160:
157:
156:
150:
147:
145:
141:
137:
132:
127:
125:
121:
120:Hertfordshire
117:
113:
109:
105:
97:
96:
92:
88:
84:
82:
78:
74:
70:
66:
62:
58:
54:
52:
48:
45:
44:Hertfordshire
42:
40:
36:
32:
27:
24:
20:
538:
402:Redwell Wood
397:Plashes Wood
371:
367:Hunsdon Mead
244:. Retrieved
230:
218:. Retrieved
208:
196:. Retrieved
189:the original
148:
140:nightingales
128:
103:
102:
94:
90:Location map
81:Notification
560: /
575:Categories
545:51°53′09″N
491:Geological
300:Biological
165:References
136:bryophytes
67:Biological
591:Knebworth
548:0°13′02″W
462:Wain Wood
432:Tewinbury
412:Rye Meads
246:3 January
220:3 January
198:3 January
116:Stevenage
112:Knebworth
95:Magic Map
153:See also
64:Interest
57:TL228223
39:Location
142:, and
240:(PDF)
192:(PDF)
185:(PDF)
248:2015
222:2015
200:2015
85:1985
72:Area
291:in
118:in
110:in
577::
173:^
126:.
281:e
274:t
267:v
250:.
224:.
202:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.