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Peter Sorensen sn 1976-07-12
United States, California, Humboldt, Woodley Island, 40.810058 -124.160617
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L.J. Heflin 3 1984-05-13
United States, California, Humboldt, Arcata Marsh and Wildlife Sanctuary, Hauser Marsh, 40.858302 -124.096658
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Ashley Storms 11 2017-10-18
United States, California, Humboldt, Freshwater Slough., 40.78413889 -124.0897778
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Wilbur Peterson 59 1970-10-17
United States, California, Del Norte, Lagoon Creek fishing access, 41.594011 -124.101937
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C. Kline 52 1970-10-28
United States, California, Humboldt, North Bank Rd, 3 mi. W of Blue Lake, Mad River gravel bottoms, 40.904677 -124.033701
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Thomas W. Nelson 261 1970-10-17
United States, California, Del Norte, W of Hwy. 101, 41.608108 -124.102853
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Arthur C. Gibson; Linda C. Gibson 2776 1972-03-04
United States, California, Los Angeles, Zuma Beach, near Point Dume
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Brad Klipfel 18 1973-04-26
United States, California, Humboldt, Eureka; Del Norte St. at Humboldt Bay, 40.790728 -124.187333
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Peter Sorensen sn 1976-06-02
United States, California, Humboldt, Woodley Island, 40.809571 -124.160617
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Peter Sorensen sn 1976-08-06
United States, California, Humboldt, King Salmon, 40.7398 -124.2194
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Linda M. Barker 1554 1976-06-01
United States, California, Humboldt, Lanphere-Christensen Dunes, 3 mi. W of Arcata., 40.890841 -124.1443
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R. Sutherland 5.18.2.78 1978-02-18
United States, California, Humboldt, S side mouth of Mattole River, 40.2899 -124.352727, 8m
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R. York 236 1979-04-16
United States, California, Humboldt, Between Arcata and Eureka along Hwy. 101, 40.819476 -124.093214
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C.L. Hitchcock; C.V. Muhlick 23067 1964-03-17
United States, California, Orange, 8 mi. E of Yorba Linda, Santa Ana Canyon., 33.871764 -117.675708
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D.E. Anderson 2242 1962-04-13
United States, California, Humboldt, Eureka, 40.802071 -124.163673
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D.E. Anderson 2388 1963-03-16
United States, California, Humboldt, At foot of Scotia Bluffs, 40.511983 -124.092453
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S.M. Clapp 10 1966-04-04
United States, California, Shasta, Olinda, CA. just S of Carbon Canyon Rd., 61m
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R.E. Jones 24 1966-04-04
United States, California, San Mateo, Ano Nuevo Beach, 37.117284 -122.310144
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C.S. Apperson sn 1966-05-02
United States, California, Ventura, Ventura River delta near Ventura Co. fairgrounds, 34.274656 -119.306884
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Greg Bos 75 1963-04-14
United States, California, Contra Costa, Bayshore Freeway at Central Ave, Richmond, 37.899996 -122.315609
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R. Spellenberg 412 1964-06-15
United States, California, Humboldt, Along egde of Humboldt Bay, on the south side of Arcata, 40.853532 -124.087223
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R.T. Forester 42 1963-04-29
United States, California, Humboldt, 1 mi. S of Fairhaven on Samoa Rd., 40.77645 -124.21049
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John Warner Hosking sn 1968-10-10
United States, California, Humboldt, Clam Beach., 40.99457 -124.112011
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Rollin Sparrowe 4 1962-04-28
United States, California, Humboldt, In sloughs N and S of road, 40.905282 -124.129492
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Francis Winter sn 1960-05-06
United States, California, Humboldt, Mouth of Mad River, N of Arcata, 40.973448 -124.120882
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H.E. Parks 24211 1941-09-00
United States, California, Humboldt, Little River Beach Park, along highway, 41.014783 -124.109722
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D.E. Anderson 1766 1961-09-02
United States, California, Humboldt, 3 mi. S of Cape Mendocino, 40.402373 -124.38405, 3m
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W.F. Nickel sn 1965-05-12
United States, California, Humboldt, On H.S.C. campus behind the Biological Sciences building, 40.874203 -124.077891
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R.D. Modafferi 12 1965-03-14
United States, California, Humboldt, 1.4 mi. S of Trinidad on old Hwy. 101, 41.052451 -124.125647
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Thomas Wood 116 1979-04-20
United States, California, Humboldt, At Clam Beach, off Hwy. 101 ca. 7 mi. N of Arcata, 40.994497 -124.116695, 3m
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Melany Seacat; Deni Seymour 54 1979-04-29
United States, California, Mendocino, Big River Estuary; south side of river, 4 mi. upriver, 39.306733 -123.761795
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Thomas W. Nelson 3757 1977-10-10
United States, California, Humboldt, Along 6th St. between G & H Sts.; Eureka, 40.801314 -124.16417
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L.P. Janeway; Amy Eisenberg 744 1984-04-24
United States, California, Humboldt, On N spit of Humboldt Bay; SE side of intersection of Samoa and Fairhaven Rds. and E of the willow patch, 40.782299 -124.210157
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Clare R. Wheeler; Gladys L. Smith 2756 1981-08-03
United States, California, Mendocino, Point Arena coastal access landing near small pond
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Clare R. Wheeler 2790 1981-08-26
United States, California, Mendocino, Manchester State Beach, 8 mi. N of Point Arena, N of Lake Davis, 38.992047 -123.701124, 6m
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Clare R. Wheeler 2827 1981-09-16
United States, California, Mendocino, Manchester State Beach; 8 mi. N of Pt. Arena; along outlet from Hunters Lagoon, 38.963885 -123.699084, 3m
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Clare R. Wheeler 2388 1981-06-01
United States, California, Mendocino, Elk. Along Greenwood Creek Trail ca. 1 mi. E of creek mouth, 39.133392 -123.703582, 30m
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Gladys L. Smith 5023 1978-08-15
United States, California, Mendocino, Near mouth of Big River, Mendocino State Park, Mendocino City., 39.3021 -123.7874, 3m
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Clare R. Wheeler 2694 1981-07-30
United States, California, Mendocino, Hwy. 1 at the S end of bridge over Navarro River and intersection with Hwy. 128, 39.196158 -123.747843, 11m
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Steve Boyd 1720 1986-04-19
United States, California, Riverside, Temescal Canyon: Warm Springs Valley, Alberhill Creek drainage, E of Nichols Rd., 33.70417 -117.35972
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F. Bowcutt 740 1986-05-19
United States, California, Mendocino, Mouth of Usal Creek. Approx. 12 air mi. SE of Four Corners. S of hotel Gulch, 39.832604 -123.846427
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C. Newberry 7155 1994-07-05
United States, California, Marin, Point Reyes National Seashore, Tomales Bay, 38.125 -122.875
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D. Atwood 17728 1993-03-29
United States, California, Orange, Huntington Beach along Beach Blvd, 0.5 mi. N of the beach, 33.6563 -117.9884
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Laura Hagenauer 32 2002-04-29
United States, California, Humboldt, Path to McDaniel Slough, V St. Arcata, 40.868502 -124.101742
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Sarah Chaney
United States, California, Santa Barbara, Santa Rosa Island: Torrey pines area below ridge, below canyons 4 & 5 where water runs underground into "sump" near shore