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].
- Sepember 15, 2010: Listing of all California populations of the mountain yellow-legged frog as "endangered" under the California ESA, and emergency "take" exemptions. Final decision due on October 1, 2011 [PDF].
- February 2, 2012: All California populations of the mountain yellow-legged frog are listed under the California ESA; Rana muscosa was listed as "endangered" and Rana sierrae was listed as "threatened" [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].
