Image: SP Crater
Description: SP Crater, in the San Francisco Volcanic Field, Arizona, is an excellent example of a cinder cone and associated lava flow. This flow extends 4 miles (6.4 km) from the cone and is only about 100 feet (30 m) thick.
Title: SP Crater
Credit: http://pubs.usgs.gov/fs/2001/fs017-01/
Author: USGS
Permission: This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy. Български | Català | Čeština | Deutsch | English | Español | Eesti | فارسی | Suomi | Français | Galego | Italiano | 日本語 | 한국어 | Македонски | മലയാളം | Nederlands | Polski | Português | Русский | Sicilianu | Türkçe | 中文 | 中文（简体） | +/−
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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