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Geological Formations in Wisconsin, By Increase Allen Lapham, 1851
1851 [May?]
Geological Formations
in Wisconsin
By IA Lapham
1851
[pen sketch]
1965
Soil 5
1960
[Lacustrine?]
Lake Deposites 100
100
[11860?]
Drift 250
Drift
250
1610
Devonian
Devonian 60
60 ft
1550
Shaly Limestone 20
1530
Racine Limestone 50
50 ft
1480
Waukesha L
Waukesha Limestone 50
50 ft
1430
Geodiferous Limestone 100
100 ft
1330
Limestone 60 ft 60
Iron ore 15 1260
[Clinton?] Shale 100ft 100
1160
Medina Sandstone? 20
1140
Galena [Limestone?]
Galena Limestone 250
250 ft
Cap Rock
one = third of a mile
890
Glass Rock Blue Limestone 50 =
840
Buff Colored Limestone 20
820
Upper Sandstone
Upper Sandstone 100
100 feet
1960 feet
720
Total
Lower [Magnesian?]
Lower Magnesian Limestone 220
220 feet
500
Potsdam Sandstone
Pottsdam Sandstone
614 ft at Madison
500 feet
0
Primary Rocks
Talcose Slate
Mica Slate
Quartzite
Iron Ores
Trap Rock
Slate Rock
Sienite
Granite
Unknown Depth
Geological Profile From Prairie Du Chien to Milwaukee
[pencil sketch]
Geol. Profile from Prairie du Chien to Milwaukee
Miss
424
350
Wauzeki [Wauzeka]
Kickapoo
Boscobel 89
360
109
360
117
126
144
154
195
232
347
Madison 274
264
Aztaln [Aztalan]
Oconomowoc
Dev 60
[Slult?] G. 260
Racine 100
Niagar [Niagara] 250
Shale 50
Galena 240
Blue 70
US 70
L M 220
Pottm 5.00
24
41
Bridgeport
60
49
muscoda
Avoca
Lone Rock
Sprng [Spring] Green
Arena
Mezomane [Mazomanie]
BE
[middtn?]
10
R. Road
260
10
7
6
5
4
3
2
Wis. Rw
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
8
18
9
19
20
21
22
24
30
49
52
54
84
96
108
114
124
440
6
7
11
13
12
60
-100
80
180
-200
5
-300
-400
430
480
-500
[4?]
480
-600
-700
-800
720
790 - 2
-900
2
860
-1000
0
-1100
1200
1080
1300
1400
1500
1600
1580
1700
1580
No. 1 Geological Profile Near the South Line of the Sate of Wisconsin
[pen sketch]
No 1 Geological Profile near the South line of the State of Wisconsin
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Racine 100
Niagara 250
Shale 50
Galena 240
Blue 70
U. Sand 70
Lower M 220
Potsdan [Potsdam] 600
530 Si
300 Dubuque
11 Mississippi
M
604 Sinsinnewa
422
Fever R
516
431 Warren
206
[illegible]
500 Monroe
194 Sugar R.
Rock R
263 Clinton
366
349
273
262
178 Fox R
330
34 Kenosha
u 140
Blue
Galena
Shales
Niagara
Racine
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
m 70
13
14
15
16
17
18
19
20
21
22
L. Michigan
Upper Sandstone
Lower Magnesian Limestone.
p -150
-100
-200
-300
11
10
9
8
7
6
5
4
1
1
2
3
4
5
6
7
8
9
10
11
12
18
19
20
24
25
26
27
28
-400
-500
Potsdam Sandstone
p a-750
350
50
70
70
220
600
1360
240
1600
-600
-700
-800
-900
-1000
-1100
-1200
-1300
-1400
-1500
-1600
Front
[color pen sketch]
Geological Profile from Lake Michigan near Milwaukee to the Mississippi at Prairie du Chien - Wisconsin.
Corniferous Limestone
Cliff Limestone
Blue Limestone
Sandstone
Lower Limestone
Mississippi R. 108
Blue R
Blue 1170
Mounds}
Sugar R
Fourth L
Keshkonong R
Rock R. 186
393
500
Pishtaka 211.
o- Waukesha
329
12m
Menomonee R 33
150
6m
Milwaukee R 37
3
100
Lake Michigan
Cliff Limestone
Blue Limestone
sandston [sandstone]
Lower Cliff Limeston [Limestone]
Lower Sandstone
Terra Incog
Decayed Limestone covered with Drift
Building Stone
Level of L. Michigan 578 feet above Ocean.
