1. Davis pyrite mine 2. Plainfield manganese mine 3. Lithia spodumene pegmatite 4. Chesterfield tourmaline locality 5. Westfield marble quarry 6. Williamsburg galena vein 7. Hatfield lead mine 8. West Farms lead mine 9. Loudville lead mine 10. Westfield trap quarry 11. Bernardston magnetite mine 12. Gill dinosaur track quarry 13. Mount Toby 14. Sunderland Caves 15. Roaring brook 16. Whittemore’s Ferry fish quarry 17. Mt. Sugarloaf 18. Leverett lead vein 19. Notch quarry 20. Northampton granite quarry 21. Titan’s Piazza 22. Titan’s Pier 23. Ox-bow lake 24. Smith’s ferry dinosaur tracks 25. Varved clay pits 26. Mt. Grace 27. French King bridge 28. Mt. Lincoln 29. Pelham asbestos mine The side road to Roaring Brook leaves the highway east of Mount Toby just north of the old cemetery, and the camp site is on the west side of the Central Vermont Railway tracks. The gray rocks east of the tracks are part of the ancient mountains of Triassic time. Their lofty summits have been worn away by the unceasing activity of weather and running water, and they are now lower than the fans of waste which was discharged from the ancient valleys. Roaring Brook is continuing the work of erosion as it tumbles down from Mount Toby, and frost has loosened the great boulders that lie on the mountainside. The rock along Roaring Brook is very different from that east of the railroad. It looks a great deal like concrete, with a large assortment of aggregate materials mixed in with the cement. The rock is conglomerate, a mass of coarse stones washed out of the ancient Triassic mountains, deposited at their base and in contemporary stream valleys, and then cemented during the ensuing ages. Many of the pebbles in the conglomerate cannot be found in the old rocks east of the railroad tracks. Actually these rocks change in character at different levels in the uplands of today, and still higher changes which were present in this mountain group during Triassic time have been destroyed, though the record of their presence has been retained in the fragments which compose the conglomerate. The woodland trail starts up the mountain about 100 yards north of the picnic grounds. The rock beside it is red granite, and the streams of Triassic time flowed over it as they carried the gravel which now makes the Mount Toby conglomerate. The latter first appears about 100 feet uphill, and it is virtually the only rock exposed from this point to the summit. Interspersed sandstone beds disintegrate easily and form quiet pools and basins in the adjacent brook; the pools end a few feet upstream where the water cascades over the edge of the next higher conglomerate stratum.