Environs of Lons le Saunter. 157 



The projection of Montaigu with the first longitudinal hill 

 joining it, forms a creek situated on the prolongation of the 

 first direction of the valley of Macornais; the waters, descend- 

 ing from Vernantois, have upset the beds of this slope towards 

 the E., and carried away into the basin of Lons le Saunier, 

 the oolitic marls which covered the projection, leaving as a 

 witness of their existence, some remains of beds at the end 

 of the village on the gryphite rocks ; the waters not being 

 able to break the latter, have been compelled to return upon 

 themselves, and to cut, in order to enter into the valley of 

 Macornais, through a considerable mass of beds which were 

 united to the upper part of the hill, and which, at present 

 form an isolated knoll opposite the village of Moyron. 



Beyond Macornais the valley opens considerably to the 

 right ; its waters, thrown back by the current, descending 

 from the village of Vaux on the opposite west side of Munsy 

 hill, have upset its beds to the W.S.W. 



There is very little inclination on the part of this hill 

 looking upon Lons le Saunier ; but it always increases to- 

 wards the other extremity ; in the quarry of Paradis, situated 

 opposite Macornais, beds of entrochi and terebratulae lime- 

 stone are seen inclined at more than 45°. 



The beds of compact and oolitic limestone covering these 

 last, and which very much resemble the brittle limestone, 

 form on the west a knoll, the stratification of which is 

 much confused, and which is not altogether detached from 

 the hill. 



It is very remarkable that this species of promontory, 

 from whence a view is obtained over the whole breadth of 

 the plains of the Saone, rests immediately on horizontal beds 

 of gryphite limestone, an escarpment of which, from six to 

 eight metres [about 20 to 26 ft.] in height, and 100 [328 ft.] 

 in length, crops out among the vines at the foot of the pro- 

 montory. 



This fact proves in the most decided manner that the 

 disturbances of the rocks of the oolitic formation cannot be 

 owing to a cause from the interior, such as an earthquake. 



