&sq=Facebook&lang=en&file=File:Question_book-new.svg){kind=small} | This article needs additional citations for verification. (April 2012) |
| Pilot Knob | |
|---|---|
&sq=Facebook&lang=en&file=File:Pilot_knob.jpg) Pilot Knob rises out of the lowlands west of Cottonmouth Creek | |
| Highest point | |
| Coordinates | 30°9′44″N 97°42′22″W / 30.16222°N 97.70611°W |
| Geography | |
&sq=Facebook&lang=en&file=File:Relief_map_of_Texas.png)  Pilot Knob | |
| Topo map | USGS |
| Geology | |
| Age of rock | late–Cretaceous Period |
| Volcanic arc/belt | Ouachita |
| Last eruption | 79–83 million years ago[1] |
Pilot Knob is the eroded core of an extinct volcano located in Austin, Texas, United States. It is near Austin-Bergstrom International Airport and McKinney Falls State Park.[1]