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1832 N. Matthiesen, J. Simmons 36 1993-06-10
U.S.A., Oregon, Yamhill, Deer Creek County Park, 6 miles west of Hwy. 18, 0.1 mile south of Gopher Valley Rd, 10 miles west of south McMinnville; NE quadrant of wetlands; SE quarter of S2.
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1834 N. Matthiesen, J. Simmons 21 1993-06-10
U.S.A., Oregon, Yamhill, Deer Creek County Park, 6 miles west of Hwy. 18, 0.1 mile south of Gopher Valley Rd, 10 miles west of south McMinnville; SE quadrant of wetlands; SE quarter of S.2.
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2128 N. Matthiesen, S. Hawes 54 1994-06-03
U.S.A., Oregon, Yamhill, Deer Creek County Park, 6 miles west of Hwy. 18, 0.1 mile south of Gopher Valley Rd, 10 miles west of south McMinnville; SE quadrant in steam bed.
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2640 JeriLynn E. Peck 18 1990-09-23
U.S.A., Oregon, Clackamas, Along W edge of on Heron Pond on Brookforest Farm, Sherwood; Rock Creek drainage area., 104m
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Nikole R. Matthiesen 54 1994-06-03
United States, Oregon, Yamhill, Deer Creek County Park, 6 miles west of Hwy. 18, 0.1 mile south of Gopher Valley Rd, 10 miles west of south McMinnville; SE quadrant in steam bed., 45.1659 -123.39247
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JeriLynn E. Peck 18 1990-09-23
United States, Oregon, Clackamas, Along W edge of on Heron Pond on Brookforest Farm, Sherwood; Rock Creek drainage area., 45.33894 -122.83622, 104m
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Nikole R. Matthiesen 36 1993-06-10
United States, Oregon, Yamhill, Deer Creek County Park, 6 miles west of Hwy. 18, 0.1 mile south of Gopher Valley Rd, 10 miles west of south McMinnville; NE quadrant of wetlands; SE quarter of S2., 45.1659 -123.39247
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Nikole R. Matthiesen 21 1993-06-10
United States, Oregon, Yamhill, Deer Creek County Park, 6 miles west of Hwy. 18, 0.1 mile south of Gopher Valley Rd, 10 miles west of south McMinnville; SE quadrant of wetlands; SE quarter of S.2., 45.1659 -123.39247