| 3972 | | 0 | 46.4399 | -121.7754 | 1415 | | CalTopo | CalTopo | | | | | | | | | | | Old growth stand of Pseudotsuga menziesii, Popul... | Gifford Pinchot National Forest | | | | | | U.S.A. | Washington | Lewis County | | | | Mon May 19 22:13:13 2014 | |
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| 4007 | | 0 | 37.8486 | -122.1941 | | | CalTopo | CalTopo | | | GPS | | | | | | | | Mature Pinus radiata forest with large, older trun... | East Bay Hills | | | S | ca. 5-10 deg. | Sibley Volcanic Regional Preserve, along Round Top... | U.S.A. | California | Contra Costa County | | | | Tue Oct 18 18:36:17 2016 | |
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| 4008 | | 0 | 37.8503 | -122.1947 | | | CalTopo | CalTopo | | | Google Maps | | | | | | | | Rock outcrop amid oak and pine woodlands. | East Bay Hills | | upper slope | SW | | Sibley Volcanic Regional Preserve, along small tra... | U.S.A. | California | Contra Costa County | SE of Berkeley | | | Tue Mar 7 19:31:45 2017 | |
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| 4009 | | 0 | 40.7637 | -122.9109 | | | CalTopo | CalTopo | | | Google Maps | | | | | | | | Mixed coniferous forest with Pseudotsuga menziesii... | Trinity Alps | Musser Hill | mid-slope | SW | steep | In narrow gully along trail from East Weaver Road ... | U.S.A. | California | Trinity County | N of Weaverville | | | Tue Mar 7 19:46:23 2017 | |
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| 4026 | | 0 | 40.7924 | -122.9692 | | | CalTopo | CalTopo | | | Google Maps | | | | | | | | Ridgeline with open, mature mixed conifer forest... | Trinity Alps | Weaver Bally | ridge | ~5 deg. | N | Just south of Weaver Bally road where it first t... | U.S.A. | California | Trinity County | NW of Weaverville | | | Mon Jan 15 13:23:01 2018 | |
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| 4064 | | 0 | 40.6622 | -122.9271 | | | CalTopo | CalTopo | | | GPS | | | | | | | |
Mixed oak woodland with interspersed conifers {... | Trinity Mountains | Browns Mountain | mid-slope terrace | | |
Along road to Union Hill Pond.
| U.S.A. | California | Trinity County | NE of Douglas City | | | Sun Apr 14 16:29:32 2019 | |
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| 4101 | | 0 | 45 | -120 | | | CalTopo | CalTopo | | | | | | | | | | | | | | | | | | | | | | | | Sat Jan 18 23:10:59 2020 | |
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| 4129 | | 0 | 32.5 | -100.3 | | | CalTopo | CalTopo | | | | | | | | | | | | | | | | | | | | | | | | Fri Sep 11 23:06:34 2020 | |
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| 4130 | | 0 | 45 | -120 | | | CalTopo | CalTopo | | | | | | | | | | | | | | | | | | | | | | | | Fri Sep 11 23:11:20 2020 | |
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| 3987 | | 0 | 38.1556 | -122.4105 | 6 | 2 | CalTopo | CalTopo | | | GPS | 15 m | | | | | | | Wood rails of wildlife viewing platform in shrubby... | San Francisco Bay | Tubbs Island | | | | Second wildlife viewing area along Highway 37 goin... | USA | California | Sonoma County | Between Novato and Vallejo | | | Wed May 6 21:55:39 2015 | |
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| 3978 | | 0 | 40.8358 | -124.1761 | | 5 | CalTopo | CalTopo | | | GPS | | | approximate | | | | | Pinus contorta stand with Vaccinium. | Pacific Coast | Humboldt Bay North Spit | | | | | U.S.A. | California | Humboldt County | N of Eureka | | | Sat Jan 24 23:06:59 2015 | |
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| 4040 | | 0 | 40.7766 | -124.1519 | | 25 | CalTopo | CalTopo | | | | | | | | | | | Alnus rubra riparian woodland amidst second growth... | North Coast | | valley bottom | | | Sequoia Park within Eureka, along boardwalk throug... | U.S.A. | California | Humboldt County | within Eureka | | | Mon Nov 5 14:42:00 2018 | |
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| 4041 | | 0 | 44.7388 | -123.0487 | | 80 | CalTopo | CalTopo | | | | | | | | | | | Riparian woodland on levy along slow river | Willamette Valley | Santiam River | | | | At Interstate Highway 5 rest area (northbound). | U.S.A. | Oregon | Marion County | South of Salem | | | Mon Nov 5 14:56:33 2018 | |
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| 4046 | | 0 | 38.4935 | -122.1505 | | 155.3 | CalTopo | CalTopo | | | GPS | | | GPS | | | | |
Quercus wislizeni / Toyon / Toxicodendron woodl... | Northern Coastal Ranges | Quail Ridge | valley bottom | 17 deg E of N | 1 deg |
Bottom of trail going northward from Quail Ridg... | U.S.A. | California | Napa County | S. side of Lake Berryessa | | | Sat Feb 2 17:01:55 2019 | |
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| 4047 | | 0 | 38.493 | -122.1484 | | 159 | CalTopo | CalTopo | | | GPS | | | | | | | |
Open, old Quercus lobata stand.
| Northern Coastal Ranges | Quail Ridge | valley bottom | 314 deg E of N | 2 deg. |
Bottom of trail on north side of the research s... | U.S.A. | California | Napa County | S. side of Lake Berryessa | | | Sun Feb 17 17:42:27 2019 | |
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| 4048 | | 0 | 38.4926 | -122.1488 | | 159 | CalTopo | CalTopo | | | GPS | | | | | | | |
Quercus spp / Toxicodendron woodland including ... | Northern Coastal Ranges | Quail Ridge | valley bottom | N | 0 |
Bottom of trails on North side of research stat... | U.S.A. | California | Napa County | S. side of Lake Berryessa | | | Sun Feb 17 17:53:49 2019 | |
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| 4049 | | 0 | 38.491 | -122.1485 | | 164 | CalTopo | CalTopo | | | GPS | | | | | | | |
Quercus lobata - Quercus wislizeni / Toxicodend... | Northern Coastal Ranges | Quail Ridge | valley bottom | 335 deg E of N | 1.5 deg. |
Bottom of trail on north side of research stati... | U.S.A. | California | Napa County | S. side of Lake Berryessa | | | Sun Feb 17 19:06:45 2019 | |
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| 4081 | | 0 | 40.5836 | -122.363 | | 165 | CalTopo | CalTopo | | | Google Earth | | | Google Earth | | | | |
Mixed oak woodland on slope along small road, b... | Sacramento Valley | | lower slope | W | ~5 deg. |
Along North Bachelli Lane where road decends to... | U.S.A. | California | Shasta County | within Redding | | | Thu Apr 18 21:27:39 2019 | |
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| 4003 | | 0 | 40.594 | -122.4034 | | 170 | CalTopo | CalTopo | | | Google Earth | | | Google Earth | | | | | Riparian Quercus and other hardwoods along river. | Sacramento Valley | | | | | Along Sacramento River (left bank) walking trail j... | U.S.A. | California | Shasta County | within Redding | | | Thu Apr 28 20:07:13 2016 | |
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| 4042 | | 0 | 43.8505 | -123.02 | | 170 | CalTopo | CalTopo | | | | | | | | | | | Manicured woodland of Pseudotsuga menziesii, Acer ... | Willamette Valley | | valley bottom | | | Along Interstate Highway 5 (north bound) at rest a... | U.S.A. | Oregon | Lane County | S of Eugene | | | Mon Nov 5 15:05:19 2018 | |
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| 4043 | | 0 | 40.589 | -122.3516 | | 180 | CalTopo | CalTopo | | | Google Earth | | | | | | | | Parking lot of commercial area (Barnes and Noble b... | Sacramento Valley | | | | | NW of intersection of Churn Creek Road and Old Alt... | U.S.A. | California | Shasta County | | | | Mon Jan 21 17:57:53 2019 | |
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| 3999 | | 0 | 38.3783 | -122.2001 | | 225 | CalTopo | CalTopo | | | GPS (phone) | | | Google Earth | | | | | Old large Quercus sp. (evergreen) along road. | Coast Range | | lower slope | | | Along highway 121 just S of farmhouse. | U.S.A. | California | Napa County | NE of Napa | | | Sun Apr 10 16:38:56 2016 | |
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| 3988 | | 0 | 40.882 | -123.547 | | 235 | CalTopo | CalTopo | | | Google Earth | | | Google Earth | | | | |
Pseudotsuga menziesii / Notholithocarpus densif... | Trinity Alps | Burnt Ranch Gorge | mid-slope | | |
Salyer Rest Area along highway 299, in pet area... | U.S.A. | California | Trinity County | | | | Wed May 6 22:34:20 2015 | |
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| 4055 | | 0 | 38.5208 | -122.1461 | | 266 | CalTopo | CalTopo | | | GPS | | | | | | | |
Open mixed Quercus woodland (mainly Q. douglasi... | Northern Coastal Ranges | Quail Ridge | low ridge | 315 deg E of N | 1 deg |
Along dirt road by power lines.
| U.S.A. | California | Napa County | Near Lake Barryessa. | | | Sun Feb 17 21:37:30 2019 | |
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| 4054 | | 0 | 38.5206 | -122.1462 | | 268 | CalTopo | CalTopo | | | GPS | | | | | | | |
Rock outcrop in open mixed Quercus woodland (ma... | Northern Coastal Ranges | Quail Ridge | low ridge | 257 | 2 deg |
Along dirt road by power lines.
| U.S.A. | California | Napa County | Near Lake Barryessa. | | | Sun Feb 17 21:34:09 2019 | |
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| 4082 | | 0 | 40.69 | -122.4 | | 285 | CalTopo | CalTopo | | | Google Earth | | | | | | | |
Sub-urban city park with native oaks (Quercus w... | Sacramento Valley | | valley bottom | | |
Park along Highway 151 in Summit City just east... | U.S.A. | California | Shasta County | Summit City | | | Sat Apr 20 20:39:52 2019 | |
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| 4023 | | 0 | 40.7636 | -122.9268 | | 340 | CalTopo | CalTopo | | | GPS | | | Google Earth | | | | | Quercus garryana / Arctostaphylos Woodland with oc... | Trinity Alps | East Weaver canyon | Mid-slope | S | ~5 deg. | Along unofficial trail between Rainbow Hansen trai... | U.S.A. | California | Trinity County | N of Weaverville | | | Mon Jan 1 22:36:47 2018 | |
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| 4050 | | 0 | 38.4845 | -122.1495 | | 340 | CalTopo | CalTopo | | | GPS | | | | | | | |
Quercus douglasii / Heteromeles arbutifolia / M... | Northern Coastal Ranges | Quail Ridge | upper slope | 33 deg E of N | 1 deg. |
Open area near a lower tent/cabin.
| U.S.A. | California | Napa County | S. side of Lake Berryessa | | | Sun Feb 17 19:42:36 2019 | |
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| 4132 | | 0 | 40.7938 | -123.3561 | 1130 | 344 | CalTopo | CalTopo | | | | | | USGS NED | | | | |
Vertical rock face in mixed hardwood / confer f... | Trinity Mountains | Trinity River Corridor | | N | ~180 deg. |
Along Highway 299 by old remnant bridge at Swed... | U.S.A. | California | Trinity County | NW of Del Loma | | | Sat Oct 10 20:32:07 2020 | |
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| 4045 | | 0 | 38.484 | -122.1493 | | 350 | CalTopo | CalTopo | | | GPS | | | | | | | |
Mixed Quercus (mainly Q. wislizeni) woodland.
| Northern Coastal Ranges | Quail Ridge | Upper Slope | N | 2 deg. |
Along trail down north slope from Quail Ridge r... | U.S.A. | California | Napa County | S. side of Lake Berryessa | | | Sat Feb 2 16:20:33 2019 | |
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