United States, California, San Bernardino, c. 10 air miles northeast of Redlands, 3-6 miles north-northeast of Mentone, from the mouth of the Santa Ana canyon about 3.2 miles upstream
34.12472 -117.07833
T1N R2W sec26-27
610 meters (2001ft)
Incorporating the broad floodplain of the Santa Ana River and adjacent slopes with chaparral and coastal sage scrub.