Mile 161 Report
Oregon Dunes NRA just north of Siltcoos River
January 21, 2026
What evidence of living or non-living things is found in the wrack line of mile 161? We went to the lowest rackline first, then, while going back, explored the top rackline. Then we explored the river’s mouth and went back to the starting point in the middle. We went the other way until we got to the big yellow sign that said 109A. We did the same thing here, we went to the lowest rack line, then the highest wrack line on the way back. In conclusion, the beach has many living things on the shoreline, and you should be careful of things there. We found lots of shells and other things to put on our posters. By Kaydence Gonzales, Olive Dougherty, Lillian Olson, Ella Gilkey, Myla Streck, Kinsey Boggs
Report Details
What evidence of living or non-living things is found in the wrack line of mile 161? We went to the lowest rackline first, then, while going back, explored the top rackline. Then we explored the river’s mouth and went back to the starting point in the middle. We went the other way until we got to the big yellow sign that said 109A. We did the same thing here, we went to the lowest rack line, then the highest wrack line on the way back. In conclusion, the beach has many living things on the shoreline, and you should be careful of things there. You should always be aware of your surroundings while you are at the beach. While we were there, we saw many different animals. We learned that there are different wrack lines. The higher the wrack line, the more wood and bottles there are because all things that float are up at the top, and the lower wrack lines have rocks and some shells that don't float. We found lots of shells and other things to put on our posters. When we found a plastic bottle that washed up, we knew that it had been in the ocean for a long time because it had mussels on it. In the end, you should always watch out for things that are living on the beach and NEVER litter. By Kaydence Gonzales, Olive Dougherty, Lillian Olson, Ella Gilkey, Myla Streck, Kinsey Boggs
Conditions
Temperature: 45 F. Cloud Cover: Sunny. Wind Velocity: Calm/Light. Tide Level: 2.0 feet.
Activities
Number of people: 3.
Concerns
Litter
Notable Wildlife
Harbor Seals (12) Birds (~70)
Beached Birds
Total dead birds: 1.
Dead Fish or Invertebrates
Dungeness Crabs (lots), Ochre Sea Star (1)
Report Images
Siuslaw Stream Team
CoastWatcher
All Mile 161 Reports
Mile 161
Oregon Dunes NRA just north of Siltcoos River
What evidence of living or non-living things is found in the wrack line of mile 161? We went to the lowest rackline first, then, while going back, explored the top rackline. Then we explored the river’s mouth and went back to the starting point in the middle. We went the other way until we got to the big yellow sign that said 109A. We did the same thing here, we went to the lowest rack line, then the highest wrack line on the way back. In conclusion, the beach has many living things on the shoreline, and you should be careful of things there. We found lots of shells and other things to put on our posters. By Kaydence Gonzales, Olive Dougherty, Lillian Olson, Ella Gilkey, Myla Streck, Kinsey Boggs
Siuslaw Stream Team
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