Simsboro Formation (TXPNs;0)

State	Texas
Name	Simsboro Formation
Geologic age	Phanerozoic \| Cenozoic \| Tertiary \| Paleocene
Original map label	PAs
Comments	Mostly sand, some mudstone, clay, and mudstone conglomerate. thickness as much as 300 ft.
Primary rock type	sand
Secondary rock type	mudstone
Other rock types
Lithologic constituents	Major Unconsolidated > Coarse-detrital > Sand (Bed) Minor Sedimentary > Clastic > Mudstone > Claystone (Bed)
Map references	Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000
Unit references	Bureau of Economic Geology, 1974, Austin Sheet, Geologic Atlas of Texas, University of Texas, Bureau of Economic Geology, scale 1:250,000.
Geographic coverage	Bastrop - Falls - Freestone - Lee - Limestone - Milam - Robertson - Williamson