— 
DENVER & RIO GRANDE WESTERN ROUTE. 235 
mile distant, but farther to the northwest the railroad approaches 
more and more closely, until at the siding of Geneva the waters come 
to the right of way. The lake is very shallow, and consequently 
bathers can go out a long distance without danger of entering water 
beyond their depth. 
From Provo to Lehi the railroad passes through some of the best 
farming land in the valley, and orchards and fields of grain, alfalfa, 
and sugar beets are on every hand. After passing the point of the 
lake the next object of interest is the great sugar mill on the right 
in the suburbs of Lehi. Not only are the beets 
Lehi. crushed and the syrup extracted here but much 
Pinnebe fe eee syrup is refined that is produced at other plants and 
Denver 717 miles, | pumped here through long pipe lines. The town 
abounds in shade and fruit trees, which give it a 
very pleasing and restful appearance, especially when seen on a hot 
midsummer day. 
East of Lehi the foot of the mountain is 5 or 6 miles from the rail- 
road, but north of the town the mountain bends suddenly to the west 
and a long spur is thrust out into the middle of the valley. This 
“toe oe Sees 
Provo terrace 
VEE By ae oS 
Bees 
FiGuRn 61,—Provo and Bonneville lake terraces at the Narrows of Jordan Valley, looking 
southeast, 
long spur on the west face of the Wasatch Range is matched by an 
equally long, low spur which projects eastward from the Oquirrh 
Range, nearly cutting off the valley of Jordan River. These-project- 
ing points are merely remnants of a lava flow (andesite) that long 
ago, in Tertiary time, probably filled the valley from the base of one 
range to the base of the other. This flow may indeed have originally 
dammed Jordan River, forming a large lake, but if so the river 
later succeeded in cutting through the barrier a channel that is now 
known as “ The Narrows.” During the existence of Lake Bonneville 
these barriers of lava caused the currents in the lake to set in certain 
directions, and large quantities of gravel and sand were deposited 
around atid over them in the form of bars or beaches. These ter- 
races, as they appear from the northwest, are shown in figure 61. 
Just before reaching Mesa siding (milepost 716) the Denver & Rio 
Grande Western crosses first the interurban trolley line, which spans 
