| 2979 | 87 | 0 | | | 0 | 0 | CalTopo | CalTopo | | | | | | | | | | | Titlow Hill Road, off HWY 299. ~20m past marker _... | | | | | | | U.S.A. | California | Humboldt County | | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3500 | 95 | 0 | | | 0 | 0 | CalTopo | CalTopo | | | | | | | | | | | Titlow Hill Road (off HWY 299) ~20m S. of ___ mile... | | | | | | | U.S.A. | California | Humboldt County | | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3511 | 96 | 0 | | | 0 | 0 | CalTopo | CalTopo | | | | | | | | | | | Titlow Hill Road (off HWY 299) ~20m S. of ___ mile... | | | | | | | U.S.A. | California | Humboldt County | | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3544 | 99 | 0 | | | 0 | 0 | CalTopo | CalTopo | | | | | | | | | | | Titlow Hill Road (off HWY 299) across road from 2... | | | | | | | U.S.A. | California | Humboldt County | | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3568 | BRStop5 | 0 | 40.778777 | -119.067692 | 4054 | 0 | CalTopo | CalTopo | 325599.000000 | 4516054.000000 | GPS | 15 m | 4054 ft | GPS | 15 m | #NAME? | NAD27 | | Open areas of pinnacled soil crusts among Atriplex... | Black Rock Desert | | flat | | | Along north side of Sulphur Road leaving the Black... | U.S.A. | Nevada | Humboldt County | | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3614 | Sulphur | 0 | | -121.488695 | 0 | 0 | CalTopo | CalTopo | | | | | | | | | | | Empty lot with collapsed building and restablishin... | | | flat | | | Crossroads of State Route 49 and Sulphur Road | U.S.A. | Nevada | Humboldt County | Sulphur Mine (and town?) | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 4127 | Trinidad Beach | 0 | 41.0568 | -124.1506 | | 1 | CalTopo | CalTopo | | | Google Earth | | | | | | | |
Rock cliff at edge of beach.
| Pacific Coast | | | | |
Beach at Trinidad Head.
| U.S.A. | California | Humboldt County | | | | Mon Sep 7 11:22:58 2020 | |
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| 1470 | 23 | 0 | | | 0 | 2 | CalTopo | CalTopo | | | | | 2 m | | | | | | Dunes on north bank of Little River (Clam Beach) | | | | | | | U.S.A. | California | Humboldt County | | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 933 | 1793 | 0 | 40.828182 | -124.176174 | 0 | 5 | CalTopo | CalTopo | 124°10.5'W | 40°49.7'N | | | 5 m | | | | | | Stable portion of moving dunes system. | Coast | | penninsula | | | just North of where HWY 255 turns and crosses bay | U.S.A. | California | Humboldt County | Samoa Penninsula, SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 934 | 1794 | 0 | 40.828182 | -124.176174 | 0 | 5 | CalTopo | CalTopo | 124°10.5'W | 40°49.7'N | | | 5 m | | | | | | Stable portion of moving dunes system. | Coast | | penninsula | | | just North of where HWY 255 turns and crosses bay | U.S.A. | California | Humboldt County | Samoa Penninsula, SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 1920 | 2704 | 0 | 40.845515 | -124.170174 | 0 | 5 | CalTopo | CalTopo | 124° 10.14' W | 40° 50.74' N | | | 5 m | | | | | | Dunes stabilized by shrubs and sparse trees | Coast | Samoa Peninsula | | | | Manilla Community Center | U.S.A. | California | Humboldt County | SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 1921 | 2705 | 0 | 40.845515 | -124.170174 | 0 | 5 | CalTopo | CalTopo | 124° 10.14' W | 40° 50.74' N | | | 5 m | | | | | | Dunes stabilized by shrubs and sparse trees | Coast | Samoa Peninsula | | | | Manilla Community Center | U.S.A. | California | Humboldt County | SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 1922 | 2706 | 0 | 40.845515 | -124.170174 | 0 | 5 | CalTopo | CalTopo | 124° 10.14' W | 40° 50.74' N | | | 5 m | | | | | | Dunes stabilized by shrubs and sparse trees | Coast | Samoa Peninsula | | | | Manilla Community Center | U.S.A. | California | Humboldt County | SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 1923 | 2707 | 0 | 40.845515 | -124.170174 | 0 | 5 | CalTopo | CalTopo | 124° 10.14' W | 40° 50.74' N | | | 5 m | | | | | | Dunes stabilized by shrubs and sparse trees | Coast | Samoa Peninsula | | | | Manilla Community Center | U.S.A. | California | Humboldt County | SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 1924 | 2708 | 0 | 40.845515 | -124.170174 | 0 | 5 | CalTopo | CalTopo | 124° 10.14' W | 40° 50.74' N | | | 5 m | | | | | | Dunes stabilized by shrubs and sparse trees | Coast | Samoa Peninsula | | | | Manilla Community Center | U.S.A. | California | Humboldt County | SW of Arcata | | Eric | Sun Feb 14 00:00:00 2010 | |
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| 2992 | 47 | 0 | 40.768181 | -124.221173 | 0 | 5 | CalTopo | CalTopo | 124° 13.2' W | 40° 46.1' N | | | | approximation | +/- 5 m | | | | Cypress grove | North Coast | Samoa Peninsula | | | | end of peninsula | U.S.A. | California | Humboldt County | S. of Manila | 4N 1W Sect. 6 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3114 | 58 | 0 | 40.768181 | -124.221173 | 0 | 5 | CalTopo | CalTopo | 124° 13.2' W | 40° 46.1' N | | | | approximation | +/- 5 m | | | | Cypress grove | North Coast | Samoa Peninsula | | | | end of peninsula | U.S.A. | California | Humboldt County | S. of Manila | 4N 1W Sect. 6 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3137 | 60 | 0 | 40.768181 | -124.221173 | 0 | 5 | CalTopo | CalTopo | 124° 13.2' W | 40° 46.1' N | | | | approximation | +/- 5 m | | | | Cypress grove and stable dunes | North Coast | Samoa Peninsula | | | | end of peninsula | U.S.A. | California | Humboldt County | S. of Manila | 4N 1W Sect. 6 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3148 | 61 | 0 | 40.768181 | -124.221173 | 0 | 5 | CalTopo | CalTopo | 124° 13.2' W | 40° 46.1' N | | | | approximation | +/- 5 m | | | | Open dune shrubland | North Coast | Samoa Peninsula | | | | Rare plant protection area at end of Samoa Peninsu... | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 31 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3159 | 62 | 0 | 40.768181 | -124.221173 | 0 | 5 | CalTopo | CalTopo | 124° 13.2' W | 40° 46.1' N | | | | approximation | +/- 5 m | | | | Open dune shrubland | North Coast | Samoa Peninsula | | | | Rare plant protection area at end of Samoa Peninsu... | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 31 | Eric | Sun Feb 14 00:00:00 2010 | |
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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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| 4198 | Fortuna | 0 | 40.575 | -124.153 | 20 | 6 | CalTopo | CalTopo | | | | | | USGS NED | | | | |
Riparian zone dominated by Populus.
| Eel River Mouth | | | | |
Along Riverwalk Trail just south of the Riverwa... | U.S.A. | California | Humboldt County | Fortuna | | | Tue May 9 21:36:16 2023 | |
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| 4174 | Ryan Creek A | 0 | 40.7746 | -124.1333 | 22 | 7 | CalTopo | CalTopo | | | | | | USGS NED | | | | |
Second growth redwood forest edge against ripar... | North Coast | Humboldt Bay area | valley bottom | | |
Along old road/trail in Ryan Creek community fo... | U.S.A. | California | Humboldt County | East side of Eureka | | | Sat Apr 23 10:35:07 2022 | |
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| 387 | 129 | 0 | | | 0 | 10 | CalTopo | CalTopo | | | | | | approximation | +/-10 m | | | | | North Coast | | | | | Past S end of Manila Community Center property (Sa... | U.S.A. | California | Humboldt County | SW of Arcata | 5N 1W Sect. 10 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 2945 | 45 | 0 | 40.825682 | -124.180507 | 0 | 10 | CalTopo | CalTopo | 124° 10.76' W | 40° 49.55' N | | | | approximation | +/-10 m | | | | Dune forest | North Coast | Samoa Peninsula | | | | W. of HWY near Samoa Cookhouse. | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 16 NW1/4 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 2956 | 46 | 0 | 40.825682 | -124.180507 | 0 | 10 | CalTopo | CalTopo | 124° 10.76' W | 40° 49.55' N | | | | approximation | +/-10 m | | | | Dune forest | North Coast | Samoa Peninsula | | | | W. of HWY near Samoa Cookhouse. | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 16 NW1/4 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3003 | 48 | 0 | 40.833182 | -124.167841 | 0 | 10 | CalTopo | CalTopo | 124° 10' W | 40° 50' N | | | | approximation | +/-10 m | | | | Dune forest | North Coast | Samoa Peninsula | | | | ~S. end of Manilla Beach and Dunes Community Cente... | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 3 or 10 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3014 | 49 | 0 | 40.825682 | -124.180507 | 0 | 10 | CalTopo | CalTopo | 124° 10.76' W | 40° 49.55' N | | | | approximation | +/-10 m | | | | Dune forest | North Coast | Samoa Peninsula | | | | W. of HWY near Samoa Cookhouse. | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 16 NW1/4 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3026 | 50 | 0 | 40.825682 | -124.180507 | 0 | 10 | CalTopo | CalTopo | 124° 10.76' W | 40° 49.55' N | | | | approximation | +/-10 m | | | | Dune forest | North Coast | Samoa Peninsula | | | | W. of HWY near Samoa Cookhouse. | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 16 NW1/4 | Eric | Sun Feb 14 00:00:00 2010 | |
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| 3037 | 51 | 0 | 40.825682 | -124.180507 | 0 | 10 | CalTopo | CalTopo | 124° 10.76' W | 40° 49.55' N | | | | approximation | +/-10 m | | | | Dune forest | North Coast | Samoa Peninsula | | | | W. of HWY near Samoa Cookhouse. | U.S.A. | California | Humboldt County | S. of Manila | 5N 1W Sect. 16 NW1/4 | Eric | Sun Feb 14 00:00:00 2010 | |
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