Key

X-Axis

Distace between wells in feet

Y-Axis

Elevation above MSL in feet

Vertical Exaggeration

25

Qal (Cahokia Formation)

Yellow

Hen 1 (Henry Formation)

Pale Yellow

Hb (Beverly Tongue)

Brown

Wt (Tiskilwa)

Green

Ha (Ashmore Tongue)

Tan

G1 (Glasford 1)

Pink

GS1 (Glasford 1 Sand/Gravel)

Salmon

G2 (Glasford 2)

Purple

GS2 (Glasford 2 Sand/Gravel)

White

Bedrock

Rectangles