Geologic units in Milam county, Texas

Alluvium (Holocene) at surface, covers 15 % of this area

Alluvium

Calvert Bluff Formation (Paleocene to Eocene) at surface, covers 13 % of this area

Calvert Bluff Formation

Midway Group, undivided (Paleocene) at surface, covers 12 % of this area

Midway Group, undivided

Navarro Group and Marlbrook Marl, undivided (Late Cretaceous; Gulfian Series) at surface, covers 9 % of this area

Navarro Group and Marlbrook Marl, undivided

Hooper Formation (Paleocene) at surface, covers 7 % of this area

Hooper Formation

Queen City Sand (Eocene) at surface, covers 6 % of this area

Queen City Sand

Simsboro Formation (Paleocene) at surface, covers 6 % of this area

Simsboro Formation

Wilcox Group, undivided (Paleocene to Eocene) at surface, covers 6 % of this area

Wilcox Group, undivided

Terrace deposits (Pleistocene and Holocene) at surface, covers 6 % of this area

Terrace deposits

High gravel deposits (Pleistocene) at surface, covers 6 % of this area

High gravel deposits

Reklaw Formation (Eocene) at surface, covers 4 % of this area

Reklaw Formation

Navarro and Taylor Groups, undivided (Late Cretaceous; Gulfian Series) at surface, covers 4 % of this area

Navarro and Taylor Groups, undivided

Carizzo Sand (Eocene) at surface, covers 2 % of this area

Carizzo Sand

Kemp clay (Late Cretaceous; Gulfian Series) at surface, covers 0.9 % of this area

Kemp clay

Weches Formation (Eocene) at surface, covers 0.6 % of this area

Weches Formation

Sparta Sand (Eocene) at surface, covers 0.4 % of this area

Sparta Sand

Nacatoch Sand (Late Cretaceous; Gulfian Series) at surface, covers < 0.1 % of this area

Nacatoch Sand

Neylandville and Marlbrook Marls, undivided (Late Cretaceous; Gulfian Series) at surface, covers < 0.1 % of this area

Neylandville and Marlbrook Marls, undivided

Pecan Gap Chalk (Late Cretaceous; Gulfian Series) at surface, covers < 0.1 % of this area

Pecan Gap Chalk