UCR
UCR0000015 Larry F. LaPré s.n. 1985-05-02
United States, California, Lake, Near Sonoma County line on Bear Ridge Road, 0.25 mi. south of three-way junction with Ridge Road and Davies Road., 38.7525 -122.71528
UCR
UCR0083911 Larry F. LaPré s.n. 1985-06-25
United States, California, Sonoma, Vicinity of Socrates Mine, west of Pine Flats Road., 38.76317 -122.75364
UCR
UCR0083910 Larry F. LaPré s.n. 1985-06-25
United States, California, Sonoma, Socrates Mine, c. 9 miles east-northeast of Geyserville, 38.76306 -122.75917, 917m
UCR
UCR0083909 Larry F. LaPré s.n. 1987-07-07
United States, California, Sonoma, Socrates Mine area, c. 9 mi. ENE of Geyserville. Serpentine barren c. 2 mi. west of Socrates Mine, at the “Ivana Roland” transmission line tower 0.5 mi. south of Cadd Fire Trail., 38.76194 -122.77944, 854m
UCR
UCR0083908 Larry F. LaPré s.n. 1986-05-31
United States, California, Sonoma, Socrates Mine area, serpentine barren c. 1.2 mi. north of Socrates Mine along ridge road (Cadd Fire Trail)., 38.76761 -122.78439, 938m
UCR
UCR0083907 Larry F. LaPré s.n. 1986-07-29
United States, California, Sonoma, Socrates Mine, c. 9 miles east-northeast of Geyserville, 38.76333 -122.75861, 976m
NY
185741 A. R. Kruckeberg 2905 1949-06-05
United States of America, California, Sonoma Co., Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line. "This locality is near junction of Socrates Mine road with Pine Flat-Middletown road on ridge west of canyon of Big Sulphur Creek. The Napa-Lake county line is on the ridge east of the Canyon of Big Sulphur Creek" -- H. K. Sharsmith, 1952, 914m
NY
03232567 H. K. Sharsmith 4129 1952-06-18
United States of America, California, Sonoma Co., Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains, 975m
PUA
59939 G.L. Clifton 1984-05-30
United States, California, Sonoma, Local landmark: Socrates Mine. The Geysers Quad., 38.761944 -122.758528, 999m
MO
100292183 Arthur R. Kruckeberg 2905 1949-06-05
United States, California, Sonoma, Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line., 914m
DAV
DAV300042 James Neilson 3912 1977-06-07
United States, California, Sonoma, Sonoma County: Mayacmas Mountains, Shell well site 'B'. (Location information obtained from Neilson 3848 which indicated that Shell drill site 'B' is about 2.5 mi. south of junction of ridgeline road and Socrates Mine Road. Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300023 James Neilson 3913 1977-06-07
United States, California, Lake, Lake County: Mayacmas Mountains, north of Shell well site 'B' 1/4 mi. (Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300024 James Neilson 3913a 1977-06-07
United States, California, Lake, Lake County: Mayacmas Mountains, north of Shell well site 'B' 1/4 mi. (Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV310012 James Neilson 3913a 1977-06-07
United States, California, Lake, Lake County: Mayacmas Mountains, north of Shell well site 'B' 1/4 mi. (Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300037 James Neilson 3912 1977-06-07
United States, California, Lake, On the border of Lake and Sonoma Counties: Mayacmas Mountains, Shell well site 'B'. (Location information obtained from Neilson 3848 which indicated that Shell drill site 'B' is about 2.5 mi. south of junction of ridgeline road and Socrates Mine Road. Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300036 James Neilson 3912 1977-06-07
United States, California, Lake, On the border of Lake and Sonoma Counties: Mayacmas Mountains, Shell well site 'B'. (Location information obtained from Neilson 3848 which indicated that Shell drill site 'B' is about 2.5 mi. south of junction of ridgeline road and Socrates Mine Road. Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300021 James Neilson 3912 1977-06-07
United States, California, Lake, On the border of Lake and Sonoma Counties: Mayacmas Mountains, Shell well site 'B'. (Location information obtained from Neilson 3848 which indicated that Shell drill site 'B' is about 2.5 mi. south of junction of ridgeline road and Socrates Mine Road. Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300025 James Neilson 3912 1977-06-07
United States, California, Lake, On the border of Lake and Sonoma Counties: Mayacmas Mountains, Shell well site 'B'. (Location information obtained from Neilson 3848 which indicated that Shell drill site 'B' is about 2.5 mi. south of junction of ridgeline road and Socrates Mine Road. Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300041 James Neilson 3914 1977-06-07
United States, California, Lake, Lake County: Mayacmas Mountains, Bear Creek drainage, US Geo 1. (Exact location unknown, coordinates estimated by label maker.), 38.763333 -122.700556
DAV
DAV300030 James Neilson 3914 1977-06-07
United States, California, Lake, Lake County: Mayacmas Mountains, Bear Creek drainage, US Geo 1. (Exact location unknown, coordinates estimated by label maker.), 38.763333 -122.700556
DAV
DAV300022 James Neilson 3914 1977-06-07
United States, California, Lake, Lake County: Mayacmas Mountains, Bear Creek drainage, US Geo 1. (Exact location unknown, coordinates estimated by label maker.), 38.763333 -122.700556
DAV
Robert Preston 3440 2023-07-23
United States, California, Lake, Mayacamas Mountains. East side of Bear Ridge Road, 3 km by road south of junction with Road 111A, and south of Northern California Power Agency Power Plant #2. NCPA geothermal lease property on BLM land., 38.748663 -122.701871, 976m
DAV
DAV338669 Ellen Dean 760 2001-05-12
United States, California, Lake, Lake Co.: NE of Indian Creek Reservoir, Walker Ridge near Kilpepper Creek Drainage, S side of Bartlett Springs Rd, S of Bartlett Springs Creek., 39.173889 -122.510833, 518m
DAV
DAV305058 James A. Neilson, Jr. 3976 1979-06-26
United States, California, Sonoma, Sonoma County: Mayacmas Mountans. About 2 1/2 miles northwest of Socrates Mine, 1/4 mile south of highest knoll above the Geysers on ridge that divides Big and Little Sulphur Creeks. (Exact location unknown. Coordinates estimated by label maker.), 38.773889 -122.803889
DAV
DAV241788 Ana Verschoor 23-018 2023-08-03
United States, California, Sonoma, Audobon Canyon Ranch, on east side of dead-end trail, about 2000 feet south of Pine Flat Road and about 0.3 miles west of "The Horn" as the crow flies., 38.72432 -122.76014, 601m
DAV
DAV338673 Ellen Dean 6208 2010-06-26
United States, California, Lake, Lake County: Cache Creek Wilderness area, southern edge of wilderness, accesssed via eastern forks of Rocky Creek Road and then via a private road owned by Stephen Gilardi (an area known as Brushy Sky High on some maps)., 38.934167 -122.470556, 701m
DAV
DAV338672 Ellen Dean 6208 2010-06-26
United States, California, Lake, Lake County: Cache Creek Wilderness area, southern edge of wilderness, accesssed via eastern forks of Rocky Creek Road and then via a private road owned by Stephen Gilardi (an area known as Brushy Sky High on some maps)., 38.934167 -122.470556, 701m
DAV
DAV338670 Ellen Dean 6206 2010-06-26
United States, California, Lake, Lake County: Cache Creek Wilderness area, southern edge of wilderness, accesssed via eastern forks of Rocky Creek Road and then via a private road owned by Stephen Gilardi (an area known as Brushy Sky High on some maps)., 38.9325 -122.468611, 767m
DAV
DAV338671 Ellen Dean 6206 2010-06-26
United States, California, Lake, Lake County: Cache Creek Wilderness area, southern edge of wilderness, accesssed via eastern forks of Rocky Creek Road and then via a private road owned by Stephen Gilardi (an area known as Brushy Sky High on some maps)., 38.9325 -122.468611, 767m
DAV
DAV300039 James Neilson 3848
United States, California, Lake, On the border of Lake and Sonoma Counties: crest of Mayacmas Mountains. About 2.5 mi. s. of junction of ridgeline road and Socrates Mine Road. (Shell Drill site 'B'. Exact location unknown, coordinates estimated by label maker.), 38.748333 -122.756111
DAV
DAV300026 James Neilson 3855 1977-03-28
United States, California, Sonoma, Sonoma County: Mayacmas Mountains, Location 6, US Geothermal 1. Lower Reach of barren. (Exact location unknown. Coordinates estimated by label maker.), 38.752222 -122.72
DAV
DAV300027 James Neilson 3856 1977-03-28
United States, California, Sonoma, Sonoma County: Mayacmas Mountains, Location 8, US Geothermal 1. (Exact location unknown. Coordinates estimated by label maker.), 38.752222 -122.72
DAV
DAV241675 Robert Preston 3441 2023-07-27
United States, California, Lake, Mayacamas Mountains. South side of Bear Ridge Road, 3.5 km by road south of junction with Road 111A, and south of Northern California Power Agency Power Plant #2. NCPA geothermal lease property on BLM land., 38.747368 -122.693167, 916m
DAV
DAV242068 Robert Preston 3442 2023-07-27
United States, California, Sonoma, Mayacamas Mountains. At end of Pine Flat Road between its junction with Hope Road and Dillingham Road. South of gate to Calpine geothermal lease, immediately south of the defunct Socrates Mine., 38.759925 -122.755829, 970m
DAV
Robert Preston 3440 2023-07-23
United States, California, Lake, Mayacamas Mountains. East side of Bear Ridge Road, 2.75 km by road south of junction with Road 111A, and south of Northern California Power Agency Power Plant #2. NCPA geothermal lease property on BLM land., 38.747658 -122.698301, 956m
DAV
DAV300032 Sharon Strauss s. n. 2007-06-28
United States, California, Sonoma, Sonoma Co.: End of Pine Flat Road at Calpine 'The Geysers.' Up fire road 0.1 mile from parking area at gate., 38.741685 -122.771663, 973m
DAV
DAV300033 Sharon Strauss s. n. 2007-06-28
United States, California, Sonoma, Sonoma Co.: Audubon Mayacamas Mountains Wildlife Refuge, Pine Flat Road, 0.25 mile on left from parking area down unpaved road from gate., 38.756613 -122.770719, 853m
DAV
DAV300020 James A. Neilson, Jr. 3903 1977-06-07
United States, California, Sonoma, Sonoma County: Mayacmas Mountains. Socrates Mine. (Exact location unknown. Coordinates estimated by label maker.), 38.763611 -122.759167
DAV
DAV300040 James A. Neilson, Jr. 3903 1977-06-07
United States, California, Sonoma, Sonoma County: Mayacmas Mountains. Socrates Mine. (Exact location unknown. Coordinates estimated by label maker.), 38.763611 -122.759167
DAV
DAV300035 James Neilson 3877 1977-04-18
United States, California, Lake, Lake County: Mayacmas Mountains, south Side of Bear Canyon drainage near crest road. (Exact location unknown, coordinates estimated by label maker.), 38.761667 -122.704167
DAV
DAV300034 James Neilson 3876 1977-04-18
United States, California, Lake, Lake County: Mayacmas Mountains, north Side of Bear Canyon drainage. Large serpentine bald ca.1/4 mile east and north of animal gate. (Exact location unknown, coordinates estimated by label maker.), 38.756667 -122.715278
DAV
DAV300029 James Neilson 3882 1977-04-24
United States, California, Lake, Lake County: Mayacmas Mountains, Bear Canyon. (Exact location unknown, coordinates estimated by label maker.), 38.761111 -122.700833
DAV
DAV300043 James Neilson 3880 1977-04-24
United States, California, Lake, Lake County: Mayacmas Mountains, Bear Canyon near top of serpentine barren just south and east of well site 'D'. (Exact location unknown, coordinates estimated by label maker.), 38.756667 -122.716389
DAV
DAV300028 James Neilson 4030 1981-05-15
United States, California, Lake, Lake County: Mayacmas Mountains, north fork Bear Canyon Creek near headwall. (Exact location unknown, coordinates estimated by label maker.), 38.756667 -122.716389
DAV
DAV305057 James A. Neilson, Jr. 3976 1979-06-26
United States, California, Sonoma, Sonoma County: Mayacmas Mountans. About 2 1/2 miles northwest of Socrates Mine, 1/4 mile south of highest knoll above the Geysers on ridge that divides Big and Little Sulphur Creeks. (Exact location unknown. Coordinates estimated by label maker.), 38.773889 -122.803889
DAV
DAV300031 N. Ivalu Cacho IC-SS-274 2011-08-18
United States, California, Sonoma, Sonoma County: Pine Flat Road, at the top., 38.759167 -122.755, 2487m
DAV
DAV300038 James Neilson 3907 1977-06-07
United States, California, Sonoma, Sonoma County: Mayacmas Mountains, Lunar Point. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.), 38.741111 -122.715
TENN
TENN-V-0241647
United States, California, Sonoma
CM:Botany-botany
CM367799 Raiche, R. 60289 1986-06-30
United States, California, Sonoma, at Lake Co. line, Mayacamas Mts, Pine Mt. fireroad, ca 0.5 mi N of Ida Clayton Rd, 747m
CalBG:RSA
RSA0611317 Lawrence LaPré s.n. 1985-05-04
United States, California, Lake, Near Sonoma County Line. Between NCPA Plants #2 & #3 on the KGRA. Access from 0.2 mile downhill on Q-Pad road from Bear Ridge Road. Susan Mazer Plots, 1985. USGS Quad: Whispering Pines.
CalBG:RSA
RSA0611316 Lawrence LaPré s.n. 1985-06-27
United States, California, Lake, Geothermal energy field ca. 5 miles due south of Whispering Pines near the Sonoma County line, the "M site" near Bear Ridge road. Whispering Pines Quad., 914m
CalBG:RSA
RSA0611290 Lawrence LaPré s.n. 1985-05-02
United States, California, Lake, Davies Rd. approx. 1/2 mile E of Ridge Rd. junction. Cazadero Quad., 853m
CalBG:RSA
RSA0611289 Lawrence LaPré s.n. 1987-07-03
United States, California, Lake, Near M-Pad site just S. of Bear Ridge Rd, E of Sonoma Co. line., 914m
CalBG:RSA
RSA0611288 Lawrence LaPré s.n. 1986-03-30
United States, California, Lake, Geothermal energy field ca. 5 miles due south of Whispering Pines near the Sonoma county line, the "M Site" near Bear Ridge Rd. Whispering Pines quad., 914m
CalBG:RSA
RSA0611287 Lawrence LaPré s.n. 1985-06-27
United States, California, Lake, Near M-pad site, N of Bear Ridge Rd, just E of Sonoma Co. line., 792m
CalBG:RSA
RSA0611286 Lawrence LaPré s.n. 1985-06-04
United States, California, Lake, Geothermal energy field ca. 5 miles due south of Whispering Pines near Sonoma County line, the "M Site" near Bear Ridge Road. Whispering Pines quad., 914m
CalBG:RSA
RSA0611285 Lawrence LaPré s.n. 1986-05-31
United States, California, Sonoma, Cadd fire trail on ridge 1 mile NW of Socrates Mine.
CalBG:RSA
RSA0611284 Lawrence LaPré s.n. 1985-06-25
United States, California, Sonoma, Around Socrates Mine, west of Pine Flats Road.
CalBG:RSA
RSA0611283 Lawrence LaPré s.n. 1987-07-02
United States, California, Sonoma, Along Cadd Fire Trail near transmission line tower, 1.5 air miles west of Socrates Mine, near Lake County Line.
CalBG:RSA
RSA0611280 Lawrence LaPré s.n. 1985-04-29
United States, California, Sonoma, Socrates Mine at the end of Pine Flat Rd. The Geysers quad., 1021m
CalBG:RSA
H. K. Sharsmith 4129 1952-06-18
United States, California, Sonoma, Near junction of Socrates Mine road with Pine Flat-Middle-town road, Mayacamas Mountains, 38.763172 -122.753639, 976m
CalBG:RSA
RSA0611278 Lawrence LaPré s.n. 1985-05-05
United States, California, Lake, Near Sonoma County line on Bear Ridge Rd 1/4 mi S of three-way junction with Ridge Rd and Davies Rd.
CalBG:RSA
RSA0611279 Lawrence LaPré s.n. 1986-06-01
United States, California, Lake, Davies Rd. approx. 1/2 mile E. of Ridge Rd. junction. Cazadero quad., 853m
CalBG:RSA
RSA0611277 Lawrence LaPré s.n. 1985-06-04
United States, California, Lake, Near Sonoma County line on Davies Rd, 1/4 mi E of three-way junction with Ridge Rd and Bear Ridge Rd.
CalBG:RSA
RSA0611276 Lawrence LaPré s.n. 1985-06-26
United States, California, Lake, Near Sonoma County line on Bear Ridge Rd 1/4 mi S of three-way junction with Ridge Rd and Davies Rd.
CalBG:RSA
RSA0611275 Lawrence LaPré s.n. 1985-05-05
United States, California, Lake, Near first expansion joint south of the intersection of Davies Rd. and Ridge Rd. Whispering pines quad.
CalBG:RSA
RSA0611274 Lawrence LaPré s.n. 1986-06-01
United States, California, Lake, At Q-Pad site, north of Bear Ridge Road, east of Sonora County Line., 853m
CalBG:RSA
RSA0611273 Lawrence LaPré s.n. 1986-05-05
United States, California, Lake, At Q-pad site, N of Bear Ridge Rd, E of Sonoma Co. line., 853m
CalBG:RSA
RSA0611272 Lawrence LaPré s.n. 1986-05-05
United States, California, Lake, Near Sonoma Co. line. Between NCPA Plants #2 &3 on the KGRA. Access from .2 miles downhill on the Q-pad Rd. from Bear Ridge Rd. Whispering pines quad. Susan Mazer plots, 1985.
CalBG:RSA
RSA0611271 Lawrence LaPré s.n. 1985-05-04
United States, California, Lake, Near Sonoma County Line. Between NCPA Plants #2 & #3 on the KGRA. Access from 0.2 mile downhill on Q-Pad road from Bear Ridge Road. Susan Mazer Plots, 1985. USGS Quad: Whispering Pines.
CalBG:RSA
RSA0611270 Lawrence LaPré s.n. 1985-06-06
United States, California, Lake, Near Sonoma county line. Between NCPS plants #2 & #3 on the KGRA. Access from .2 miles downhill on Q-pad Rd. from Bear Ridge Rd. Whispering Pines quad. Susan Mazer plots, 1985.
CalBG:RSA
RSA0611315 Lawrence LaPré s.n. 1986-06-01
United States, California, Lake, Near Sonoma Co. line. Between NCPA Plants #2 & #3 on the KGRA. Downhill from the Q-pad Rd. off Bear Ridge Rd. Whispering pines USGS quad.
CalBG:RSA
RSA0611314 Lawrence LaPré s.n. 1985-06-26
United States, California, Lake, Near Sonoma County Line. Between NCPA Plants #2 & #3 on the KGRA. Downhill from the Q-Pad Road off Bear Ridge Road. Whispering pines USGS quad.
CalBG:RSA
RSA0611313 Lawrence LaPré s.n. 1985-06-27
United States, California, Lake, At Q-Pad site, N of Bear Ridge Rd, E of Sonoma Co. line., 853m
Harvard:GH
00379980 F. W. Hoffman 3379 1950-06-22
United States of America, California, Sonoma County, Summit of ridge about 0.5 mile south of Mercuryville road to the Big Geysers
Harvard:GH
00379981 H. K. Sharsmith 4129 1952-06-18
United States of America, California, Sonoma County, Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains, 975m
Harvard:GH
00379982 H. K. Sharsmith 4129 1952-06-18
United States of America, California, Sonoma County, Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains, 975m
Harvard:GH
00379983 F. W. Hoffman 2871 1949-07-06
United States of America, California, Sonoma County, ridge near Contact Mine, east of Pine Flat on the Sonoma-Lake county line, 914m
Harvard:GH
00379984 F. W. Hoffman 3436 1950-06-29
United States of America, California, Sonoma County, ridge near Contact Mine, east of Pine Flat on the Sonoma-Lake county line, 914m
Harvard:GH
00040577 F. W. Hoffman & A. R. Kruckeberg 2905 1949-06-05
United States of America, California, Sonoma County, Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line, 3000 feet, 914m
Harvard:GH
00019689 F. W. Hoffman & A. R. Kruckeberg 2905 1949-06-05
United States of America, California, Sonoma County, Exposed serpentine ridge near Contact Mine, east of Pine Flat, on the Sonoma-Lake county line, 3000 feet, 914m