The slopes can be accessed via hiking trails emanating from Blue Rock Springs Park in the city of Vallejo.
[5] The highest peak on Sulfur Springs Mountain stands at an elevation of 1,112 feet (339 m),[1] and affords expansive views of the northern San Francisco Bay as well as the Napa River.
The rock outcroppings which occur in the Sulphur Springs area are composed of basaltic lava; however, there are also serpentine outcrops, which soils are known to provide habitat for many rare and endangered species in Northern California.There are the remains of three native American village sites on Sulphur Springs Mountain above Blue Rock springs park that had been inhabited by The Suisunes, The Coastal Miwok and other Patwin tribes.
The Earth Metrics research found that in excess of 100,000 gallons per day was produced by the principal sulfur spring on this mountain as recently as 1927; by the 1940s this flow was all but attenuated, due to extensive mine shaft construction.
Prior hydrology modeling has been performed using the HEC-2 formalism to analyze flows in both Rindler Creek and Blue Rock Springs Creek; these studies were conducted to evaluate flooding potential and in order to conduct certain channel alterations associated with urban development on the lower slopes of Sulfur Springs Mountain.