Rivits, Dean 2005 Journal Marble Gulch and Bridalburg Rd., Stanislaus National Forest, Mariposa CA, CA (cent) Feb. 5 lot of limestone but it all looked quite dry. We drove back to another site in Marble Gulch about 2.3 km east of the first one (37°44'09.0"N, 120°00'37.7"W (NAD27), 9m), 874m) where there were very large limestone outcrops along the rock. The area was mossy and somewhat dry; although it seemed moist enough beneath most rocks to find salamanders. We found a juvenile (SMR #28) and an adult (SMR 29) Eurycea eschscholtzii platensis beneath rocks. Marble Gulch seems like prime R. Biennus habitat and merits further exploration after rains. We returned to Bowl Cave and climbed down into the cave. It was cool but we didn't find anything.