The following are links to documents related to the listing of the mountain yellow-legged frog under the federal or state Endangered Species Act (ESA). Right-click links to open them in a new window.

Mountain yellow-legged frogs - all populations

• January 25, 2010: Petition to list the Sierra Nevada and southern California populations as "endangered" under the California ESA [PDF].

Mountain yellow-legged frogs in southern California

• July 8, 1997: 90-day finding by the USFWS regarding the petition to list the southern California population as "endangered" under the federal ESA [PDF].
• December 22, 1999: 12-month finding and proposed rule by the USFWS to list the southern California population as "endangered" under the federal ESA[PDF]
• July 2, 2002: Final rule by the USFWS designating the southern California population as "endangered" under the federal ESA [PDF].
• September 14, 2006: Final rule by the USFWS to designate critical habitat for the southern California population under the federal ESA [PDF].

Mountain yellow-legged frogs in the Sierra Nevada

• October 12, 2000: 90-day finding by the USFWS regarding the petition to list the Sierra Nevada population as "endangered" under the federal ESA [PDF].
• January 16, 2003: 12-month finding by the USFWS regarding the petition to list the Sierra Nevada population as "endangered" under the federal ESA [PDF].
• June 25, 2007: Revised 12-month finding by the USFWS regarding the petition to list the Sierra Nevada population as "endangered" under the federal ESA [PDF].