UC
UC2004772 Ronald Robertson 9704 2007-02-17
United States, California, Sutter Buttes, Little North Butte., 39.224722 -121.789722
UC
UC2002746 Ronald Robertson 9931 2004-05-22
United States, California, Mount Diablo State Park. Rock City., 37.847778 -121.931111
UC
UC2005216 Judith Robertson 9650 2007-02-17
United States, California, Sutter Buttes; Above Hough Creek, 39.224167 -121.807778
UC
UC2005212 Ronald Robertson 9635 2007-02-17
United States, California, Little North Butte.
UC
UC2005213 Ronald Robertson 9629 2007-02-17
United States, California, Little North Butte.
UC
UC2005214 Ronald Robertson 9712 2007-02-17
United States, California, Sutter Buttes. The 'Alps'., 39.224722 -121.789722
UC
UC2005215 Ronald Robertson 9684 2007-02-17
United States, California, Sutter Buttes. The 'Alps'., 39.224722 -121.789722
UC
UC2004771 Ronald Robertson 9684b 2007-02-17
United States, California, Sutter Buttes. The 'Alps'., 39.224722 -121.789722
UC
UC2000266 Judith Robertson 8319a 2007-02-21
United States, California, Mount Diablo State Park. Rock City, 37.84778 -121.93111
UC
UC2000267 Ronald Robertson 8395a 2004-02-22
United States, California, Mount Diablo State Park. Trail along west fork of Sycamore Creek southeast of Rock Creek
UC
UC2000268 Ronald Robertson 8395b 2004-02-22
United States, California, Mount Diablo State Park. Trail along west fork of Sycamore Creek southeast of Rock Creek
UC
UC2002234 Ronald Robertson 3757b 2000-03-05
United States, California, North of Napa, Atlas Peak. Road 5 miles North of Highway 121
UC
UC2000229 Judith Robertson 1217 1997-11-08
United States, California, Pepperwood Preserve
UC
UC2004479 Judith Robertson 4077 2000-06-23
United States, California, Mount Tamalpais State Park, about .25 miles south of Rock Spring parking lot.
UC
UC2004480 Judith Robertson 4026 2000-04-08
United States, California, Mount Tamalpais State Park, just south of Rock Spring parking lot
UC
UC2004481 Judith Robertson 4076 2000-06-23
United States, California, Mount Tamalpais State Park, about .25 miles south of Rock Spring parking lot.
UC
UC2002233 Ronald Robertson 3136 2000-03-05
United States, California, About 10 miles north of Napa on Silverado Trail. West facing hillside just south of Rector Residence.
UC
UC2002235 Ronald Robertson 3412 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress.
UC
UC2002236 Judith Robertson 3300 2000-03-26
United States, California, Stebbins Cold Canyon Reserve, West side of canyon
UC
UC2002237 Judith Robertson 1540 1998-04-14
United States, California, Geysers Road, 2 miles north of Geysers Resort
UC
UC2002238 Judith Robertson 1541 1998-04-14
United States, California, Geysers Road, 2 miles north of Geysers Resort
UC
UC2002240 Judith Robertson 1987 1998-10-11
United States, California, Kelbaker Road 12 miles East of Baker, East side of road
UC
UC2002243 Ronald Robertson 2440b 1999-05-20
United States, California, 5 miles northwest of Cazadero
UC
UC2002244 Judith Robertson 2480 1999-06-26
United States, California, Lalane Ranch, .3 miles northwest of Cloverdale
UC
UC2002246 Judith Robertson 1874 1998-08-22
United States, California, Owens River Road, Hot Creek, 2 miles Southeast of Hwy 203
UC
UC2002247 Judith Robertson 1865 1998-08-22
United States, California, Hot Creek, 2 miles Southeast of Hwy 203, Owens River Rd.
UC
UC2002248 Ronald Robertson 3417 2000-04-01
United States, California, 'The Cedars', ca. 7 miles north of Cazadero.
UC
UC2002249 Ronald Robertson 3413 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress
UC
UC2002250 Judith Robertson 1538 1998-04-14
United States, California, Geysers Road, 2 miles north of Geysers Resort
UC
UC2002251 Judith Robertson 2394 1999-04-09
United States, California, Glen Ellen, 1 mile South
UC
UC2002252 Ronald Robertson 3414 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress
UC
UC2002253 Ronald Robertson 3416 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress
UC
UC2002254 Ronald Robertson 3419 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress
UC
UC2002255 Ronald Robertson 3418 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress
UC
UC2002256 Ronald Robertson 5598 2001-01-06
United States, California, Below Monticello Dam, on north side of Putah Creek.
UC
UC2002257 Ronald Robertson 3415 2000-04-01
United States, California, 7 miles north of Cazadero. 'The Cedars', serpentine chaparral with Sargent Cypress
UC
UC2002258 Judith Robertson 5523 2000-12-22
United States, California, Just below Monticello Dam, north side of Putah Creek.
UC
UC2002259 Judith Robertson 3558 2000-03-18
United States, California, Bartlett Springs Road, 1.2 miles west of Walker Ridge Road
UC
UC2002260 Judith Robertson 3557 2000-03-18
United States, California, Bartlett Springs Road, 1.2 miles west of Walker Ridge Road
UC
UC2002261 Ronald Robertson 5570 2001-01-06
United States, California, Below Monticello Dam; steeply sloping south-facing sandstone strata on north side of Putah Creek.
UC
UC2002262 Ronald Robertson 5582 2001-01-06
United States, California, Below Monticello Dam; steeply sloping south-facing sandstone strata on north side of Putah Creek.
UC
UC2002263 Ronald Robertson 3757a 2000-03-05
United States, California, North of Napa, Atlas Peak Road about 5 miles North of Highway 121
UC
UC2002264 Ronald Robertson 3149 2000-03-05
United States, California, About 10 miles north of Napa on Silverado Trail. West facing hillside just south of Rector Residence.
UC
UC2002265 Ronald Robertson 3157 2000-03-05
United States, California, About 10 miles North of Napa on Silverado Trail, West facing hillside just south of Rector residence.
UC
UC2002266 Ronald Robertson 3152b 2000-03-05
United States, California, about 10 miles North of Napa on Silverado Trail. West facing hillside just south of Rector Reservoir
UC
UC2002267 Ronald Robertson 3146 2000-03-05
United States, California, 10 miles North of Napa on Silverado Trail, West facing hillside just south of Rector Residence.
UC
UC2002268 Ronald Robertson 3152a 2000-03-05
United States, California, About 10 miles north of Napa on Silverado Trail. West facing hillside just south of Rector Residence.
UC
UC2002269 Ronald Robertson 3148c 2000-03-05
United States, California, About 10 miles north of Napa on Silverado Trail. West facing hillside just south of Rector Reservoir.
UC
UC2002270 Ronald Robertson 3148b 2000-03-05
United States, California, about 10 miles North of Napa on Silverado Trail. West facing hillside just south of Rector Reservoir
UC
UC2002275 Ronald Robertson 7663 2001-01-06
United States, California, Below Monticello Dam, on south side of Putah Creek.
UC
UC2002276 Ronald Robertson 2440a 1999-05-20
United States, California, 5 miles northwest of Cazadero
UC
UC2002232 Ronald Robertson 3148a 2000-03-05
United States, California, About 10 miles north of Napa on Silverado Trail. West facing hillside just south of Rector Residence.
UC
UC2002271 Judith Robertson 2000 1998-10-17
United States, Nevada, Lake Mead Blvd. and Gypsum Mine Road, conglomerate rock, east of Sunrise Mountain
UC
UC2000877 Judith Robertson 6140 2001-04-28
United States, California, Daley Ranch. Trail west of Burnt Mountain., 33.201483 -117.063717
UC
UC2000265 Judith Robertson 8319b 2004-02-21
United States, California, Mount Diablo State Park. Rock City., 37.847778 -121.931111
UC
UC1998333 Ronald Robertson 9478 2006-02-20
United States, California, Roy's Redwoods Preserve. Dirt road above redwood area.
UC
UC2018803 Judith Robertson 1143 1997-10-25
United States, California, East of Robert Louis Stevenson State Park on Palisades trail
UC
UC2000061 Judith Robertson 6006 2001-02-11
United States, California, Northeast of Kenwood. South slope of Mount Hood.
UC
UC1997811 Judith Robertson 6277 2001-06-23
United States, California, Calaveras State Park. Scenic Overlook., 38.2727 -120.300167
UC
UC1997812 Judith Robertson 6404 2001-06-24
United States, California, Calaveras State Park, Lava Bluffs Trail, 38.2613 -120.27905
UC
UC2004482 Judith Robertson 3838 2000-04-09
United States, California, Mount Tamalpais State Park, just south of Rock Spring parking lot
UC
UC2004484 Judith Robertson 4085 2000-06-23
United States, California, Mount Tamalpais State Park, about .25 miles south of Rock Spring parking lot.
UC
UC2004485 Ronald Robertson 4496 2000-06-30
United States, California, Mount Tamalpais State Park; Serpentine outcrops near summit of Mount Tamalpais. Elevation approximately 2500 feet.
UC
UC2004486 Judith Robertson 3832 2000-04-09
United States, California, Mount Tamalpais State Park, just south of Rock Spring parking lot
UC
UC2004487 Judith Robertson 4027 2000-04-08
United States, California, Mount Tamalpais State Park, just south of Rock Spring parking lot
UC
UC2004488 Ronald Robertson 4504 2000-06-30
United States, California, Mount Tamalpais State Park. Serpentine outcrops near summit of Mount Tamalpais
UC
UC2004497 Ronald Robertson 9417b 2005-10-16
United States, California, Pinnacles National Monument; Condor Gulch Trail. 0.5 miles northeast of Bear Gulch Visitor Center.
UC
UC2004498 Ronald Robertson 9417 2005-10-16
United States, California, Pinnacles National Monument; Condor Gulch Trail. 0.5 miles northeast of Bear Gulch Visitor Center.
UC
UC2004499 Ronald Robertson 9421 2005-10-16
United States, California, Pinnacles National Monument; Condor Gulch Trail. 0.5 miles northeast of Bear Gulch Visitor Center.
UC
UC2004489 Ronald Robertson 5016 2000-11-26
United States, California, Mount Tamalpais State Park; Serpentine outcrops near West Peak, north side of road.
UC
UC2004490 Ronald Robertson 5847 2001-02-03
United States, California, Mount Tamalpais State Park, Highway 1, about 3 miles south of Stinson Beach.
UC
UC2004478 Ronald Robertson 5030 2000-11-26
United States, California, Mount Tamalpais State Park, Serpentine outcrops near West Peak. North side of road.
UC
UC2004504 Ronald Robertson 5870 2000-02-03
United States, California, Mount Tamalpais State Park, Highway 1, about 3 miles south of Stinson Beach.
UC
UC2004505 Judith Robertson 4082 2000-06-23
United States, California, Mount Tamalpais State Park, about .25 miles south of Rock Spring parking lot.
UC
UC2004491 Ronald Robertson 5907 2000-02-03
United States, California, Mount Tamalpais State Park, Highway 1, about 3 miles south of Stinson Beach.
UC
UC2004492 Judith Robertson 4075 2000-06-23
United States, California, Mount Tamalpais State Park, about .25 miles south of Rock Spring parking lot.
UC
UC2004493 Ronald Robertson 4497 2000-06-30
United States, California, Mount Tamalpais State Park. Serpentine outcrops near summit of Mount Tamalpais
UC
UC2004494 Ronald Robertson 9422b 2005-10-16
United States, California, Pinnacles National Monument; Condor Gulch Trail. 0.5 miles northeast of Bear Gulch Visitor Center.
UC
UC2004495 Ronald Robertson 9418 2005-10-16
United States, California, Pinnacles National Monument; Condor Gulch Trail. 0.5 miles northeast of Bear Gulch Visitor Center.
UC
UC2004496 Ronald Robertson 9422 2005-10-16
United States, California, Pinnacles National Monument; Condor Gulch Trail. 0.5 miles northeast of Bear Gulch Visitor Center.
UC
UC2000719 Ronald Robertson 7083 2003-07-13
United States, California, UC White Mountain Research Station, Approximately 1 mile South of Barcroft Gate, Dolomite outcrop
UC
UC1968066 Judith Robertson 7195 2003-07-14
United States, California, White Mountains Road, 37.439167 -118.195833
UC
UC1968067 Judith Robertson 7194 2003-07-14
United States, California, White Mountains Road, 37.439167 -118.195833
UC
UC2004500 Ronald Robertson 4516 2000-06-30
United States, California, Mount Tamalpais State Park; Serpentine outcrops near summit of Mount Tamalpais. Elevation approximately 2500 feet.
UC
UC2004501 Ronald Robertson 4996 2000-11-25
United States, California, Mount Tamalpais State Park; rock outcrops just below East Peak summit
UC
UC2004502 Ronald Robertson 5323 2000-12-02
United States, California, Mount Tamalpais State Park; roadside rocks on West Ridgecrest Blvd, about 2 miles northwest of Rock Spring
UC
UC2004503 Judith Robertson 4084 2000-06-23
United States, California, Mount Tamalpais State Park, about .25 miles south of Rock Spring parking lot.
UC
UC2000694 Judith Robertson 8899 2004-09-26
United States, California, Soldier Creek, 41.5775 -120.223056
UC
UC1998049 Ronald Robertson 9210 2005-07-01
United States, California, University of California White Mountains Research Station. Above Patriarch Grove on road to Barcroft Gate.
UC
UC1968102 Judith Robertson 7223 2003-07-15
United States, California, Highway 4, Ebbetts Pass, east side, 38.613333 -119.762222
UC
UC1992045 Judith Robertson 9332 2005-07-02
United States, California, UC White Mountains Research Station. Crooked Creek road, east of Research Station., 37.505 -118.003056
UC
UC1992046 Judith Robertson 9333 2005-07-02
United States, California, University of California White Mountain Research Station. Crooked Creek road, east of Research Station., 37.505 -118.003056
UC
UC1992044 Judith Robertson 9337 2005-07-02
United States, California, UC White Mountains Research Station. Crooked Creek road, East of Research Station., 37.505 -118.003056
UC
UC2000715 Judith Robertson 7297 2003-07-12
United States, California, UC White Mountains Research Station, Crooked Creek Facility, 0.5 miles So.
UC
UC2000714 Ronald Robertson 7085 2003-07-13
United States, California, University of California White Mountains Research Station. Approximately 1 mile south of Barcroft Gate.
UC
UC1997869 Judith Robertson 6072 1997-09-25
United States, California, Santa Cruz Island, Pelican Bay
UC
UC2000720 Ronald Robertson 7089 2003-07-13
United States, California, University of California White Mountains Research Station. Approximately 1 mile south of Barcroft Gate.
UC
UC2000721 Ronald Robertson 7083b 2003-07-13
United States, California, University of California White Mountains Research Station. Approximately 1 mile South of Barcroft Gate.
UC
UC2000695 Judith Robertson 8899b 2004-09-26
United States, California, Soldier Creek, 41.5775 -120.223056
UC
UC2000264 Judith Robertson 8422 2004-02-21
United States, California, Mount Diablo State Park. Trail to North Peak., 37.880556 -121.913611