Mile 161 Report
Oregon Dunes NRA just north of Siltcoos River
April 2, 2024
It was a foggy cool day.
Report Details
It was a foggy cool day. At mile 161 we walked the mile between the Siltcoos outlet & the signpost that closes the beach to DHVS. We saw people walking, taking photos, and fishing. We saw 8 harbor seals in the surf, 2 bald eagles, 5 plovers, 3 large flocks of sanderling, and a few gulls. Along the wrack line, we found many colors of plastics, lots of shells, and thousands of Vellela vellela. As we were leaving we witnessed a sheriff ticket 4 separate minors on dirt bikes for riding on the highway to enter the parking lot.
Conditions
Temperature: 51 F. Cloud Cover: Foggy. Wind Velocity: Calm/Light. Tide Level: 7.0 feet.
Activities
Number of people: 15. Walking or running: 2. Sitting: 12. Fishing: 1.
Other Activities: People in the parking lot were riding dirtbikes.
Concerns
Notable Wildlife
2 bald eagles, 3 large flocks of sanderlings, 5 western snowy plovers, a few gulls, 8 harbor seals in the surfline.
Dead Fish or Invertebrates
23 dead or molted crab shells 1 dead jellyfish Thousands of washed-up Velella Velella in the wrack line.
Wrackline Content
Small rocks, Seaweeds and seagrass, Shells, Animal casings or molts, Wood pieces, Marine debris, Plastic debri (plastic, styrofoam, etc. washing in from the sea), Ocean-based debris (from fishing boats, ship trash, etc.). Blue Plastic Green Plastic Red Plastic Orange Plastic White Plastic Clear Plastic Rope Styrofoam Shotgun Shell Metal Glass Black plastic Brown plastic Trash Left behind Yellow plastic Dead European grass Vellela vellela Seals Sticks Shells Huckleberry leaf Alder flowers Salal leaf Lichen Seaweed Crab English ivy leaf Spruce cone Fishing Lure Jellyfish Feather driftwood Fishing hook Beer can Pine cone
Natural Changes
Erosion of vegetated foredune. Smaller cut bank compared to January's observation. Multiple larger dune areas with beach grass intact has begun eroding due to wave action, some beach grass is dead and washing up in the wrack line because of this erosion.
Report Images
All Mile 161 Reports
Mile 161
Oregon Dunes NRA just north of Siltcoos River
We are the shoreline group of the first quarter 6th-grade Stream Team.
Siuslaw Stream Team
Mile 161
Oregon Dunes NRA just north of Siltcoos River
I was pleasantly surprised to spot many juvenile plovers near the water's edge and further up the shore, sitting in scrapes. I was dismayed to find long expanses of dead jellies. As always, the osprey were feeding and then watching me from their perch on an old fallen tree.
Anna Yori
Mile 161
Oregon Dunes NRA just north of Siltcoos River
I was happy to see less human encroachment this time into the protected, fenced-off areas designated for the endangered Snowy Plovers.
Anna Yori
Mile 161
Oregon Dunes NRA just north of Siltcoos River
I monitor this location as a USFS Snowy Plover docent.
Anna Yori
Mile 161
Oregon Dunes NRA just north of Siltcoos River
Many abiotic and biotic factors can be found along the shoreline of Siltcoos Outlet, Florence Oregon. Overall, we found many living and non living things along the wrack line of mile 161.
Siuslaw Stream Team
Mile 161
Oregon Dunes NRA just north of Siltcoos River
At least twenty-nine different species of marine mammals occur in Oregon coast waters. In conclusion, for all of the evidence and data we collected from walking on mile 161, we found the remains of living and dead creatures and many other human-created things.
Siuslaw Middle School Stream Team
Mile 161
Oregon Dunes NRA just north of Siltcoos River
We Are the shoreline group of the siuslaw middle school team team. We brought with us binoculars, Coastwatch data sheet, and a Bucket for trash. In the end we found lots of evidence of living things along with non living on the wrack line of mile 161.
Siuslaw Stream Team
Mile 161
Oregon Dunes NRA just north of Siltcoos River
What we found at mile 161 is a variety of things like birds, clams, and shells.
Siuslaw Middle School Stream Team







