CHP EOStGLACIAL CONNECTICUT AT TURNERS 
IVAULIES, » WUEANS)S\. 
CONTENTS. 
The fossil waterfalls. 
The promontory. 
Montague Plain —clays, gravels and erosion interval. 
Glacial channels. 
The preglacial Connecticut. 
Its postglacial wanderings. 
The ice lobes. 
Succession of channels. 
Lakes of the Lily Pond type. 
Tue familiar slabs of sandstone with fossil footprints from 
Duxners Falls come chiefly from the “Bird Track Quarry,” 
about a mile from that village on the opposite side of the Con- 
necticut River.” 
The quarry is on the west shore of a little sheet of water 
known as the Lily Pond, which is steeply walled with rocks on 
three sides, opening on the north to a tract of marsh and a 
stagnant arm of the river called the Cove. These details are 
clearly shown in Fig. 2, giving on a large scale the actual 
topography of the region about A and B in Fig. 1. Fig. 2 1s 
not taken from the state map. 
The Lily Pond is the pool of an abandoned waterfall made 
by the Connecticut some time since the last glacial epoch, and 
occupied long enough for it to cut back an eighth of a mile in 
the Triassic sandstone. When this path was abandoned the 
tiver was fifty feet above its present bed. Fig. 3 shows one 
wall of the little gorge at the point where the quarry is situated, 
looking across the pond from the opposite side. The quarry is 
just beneath the pine tree in the center, the rejected slabs form- 
ing the talus heap below. 
eee Bi Sen 
463 
