DEPOSITS NORTHEAST OF DANBURY
North of the railroad, opposite Shelter Rock ([fig. 6]), is a most interesting flat-topped ridge of drift which topographically is an extension of the higher rock mass to the northwest. In this drift mass are to be found in miniature a number of the forms characteristic of glacial topography. The broad-topped gravel ridge slopes sharply on the north into a flat-bottomed ravine which is evidently part of the Still River lowland. This portion of the valley has been shut off by drift deposits. The drainage has been so obstructed that the stream in the ravine turns northeast away from its natural outlet. In the valley of "X" brook ([fig. 1]) are terraces, esker-like lobes, and detached mounds of stratified drift resting on a foundation of till.
Along the eastern border of the hill is to be seen the contact between two forms of glacial deposits ([Pl. IV, B]). A mass of stratified drift overlies a hummocky deposit of coarse till, but large boulders occurring here and there on top of the stratified drift show that the ice-laid and water-laid materials were not completely sorted. Boulders seem to have been dropping out of the ice at the same time that gravel was being deposited. Boulders of granite-gneiss eight feet or more in diameter, carried by the ice from the hills to the north and northeast, are strewn at the foot of the hill.
DEPOSITS BETWEEN BEAVER BROOK MOUNTAIN AND
MOUTH OF STILL RIVER
About a mile beyond Beaver Brook Mountain, the railroad cuts through the edge of a hill 80 feet in height exposing a section consisting of distinctly stratified layers of fine white quartz sand, coarser yellowish sand, and small round pebbles. The quartz sand was used at one time in making glass. Farther east where the two tracks of the New York and New England railroads converge, a cut shows a section of at least 40 feet of boulder clay. Near the river, limestone boulders are common, indicating that the valley to the north was degraded to some extent by the glacier.
| State Geol. Nat. Hist. Survey | Bull. 30. Plate V. |
 | |
A. Kames in Still River Valley west of Brookfield Junction.