Mile 191 Report

September 24, 2015
by YmnKai

Location:
Lincoln
Devils Churn, Cape Perpetua, North Cape Creek
Conditions:
Thursday 1:00 PM
Humans / Pets:
People:
20
Dogs:
0
Activities:
Walking / Running:
15
Playing in surf:
0
Playing in sand:
0
Sitting:
5
Rockhunting:
0
Looking at Devil's Churn
Concerns:
Apparent Violations:
None
Disturbances:
Vehicles:
Activity Comments:
People were walking the trails around Devil's Churn and directly around the Churn people were walking on the south side, and 3 couples were coming around from the north side when I arrived.
Notable Wildlife:
Noticed 2 harbor seals playing in the waves at the mouth of a sea cave at the .4 mi . Also noted 11 adult cormorants perched on the cave cliff wall with 2 nests. One nest had one chick, the other has two chicks. Both chicks were feathered and grayish black. Noted gulls and several cormorants flying or perched on the rocky shore. Various tidal pools among the basalt shoreline had a variety of algae and tide pool invertebrate animals. Tide was fairly high at ~7 ft. So any sea stars noted were at the upper end of the littoral zone and any count would not be representative. The splash and upper littoral areas of the rocky shore had a healthy appearing population of sea palm, mussels and barnacles. Most of the channels I came across had several sea stars visible in different stages of maturity and size and they all appeared healthy. I was unable to see any large populations due to the higher tide. The tide pools had an assortment of green and brown algae with hermits crabs, purple shore crabs, turban snails, limpets, anemones and I noticed one chiton pictured. An amazing encounter in one large channeled tide pool was a with a large population of purple sea urchins in various stages of maturity. A rough count put the population at about 1500-2000 animals (photo). I observed other adjoining pools and noticed about 200 scattered in 2 other tide pools. I didn't notice any kelp but they seemed to be grazing on the algae on the pool bottom and sides away from the ocean and in the sun. They all looked healthy with some as small as 1/2 inch to 3-4 inches. Saw a crab giving an urchin a piggy back ride He was able to shake it off but it was surrounded by many others waiting their turn.
Dead Birds:
Total:
1
Signs of oil:
0
Entanglement:
0
Species/names:
Unidentified bird skeleton
Stranded:
Total:
0
N/A
Fish & Invertebrates:
None
Driftline:
Kelp or Algae·Animal casings (e.g. crab, shrimp molt)·Shells·Small rocks·Wood pieces
Saw two small chunks of styrofoam
New Development:
Modifications:
N/A
Natural Changes:
Landslides/major boulder falls
Minor hillside slipping
Comments:
None required. Not significant in size or location. (see photo)
Summary:
Human activity consisted of people visiting Devil's Churn-area trails (Photo). No significant concerns or actions required. Most people were walking on the south side of the churn with 3 young couples walking from the immediate north side.Slight patch of hillside movement (photo). It didn't look recent. Interesting lava/basalt tube (photo) protruding from the shore hillside and large boulders scattered in proximity at the bottom of Cape Perpetua. Noticed neat, holes on a basalt ridge on the shoreline (photo), core sampling? Nice walk but unable to access northern .6 through private property. I will log in at a future date, perhaps on a minus tide where access across sea channels is more practical, and continue with coastwatch mile 192. I think the .4 mi showed a healthy ecosytem but this is just my observation with little reference to past observations or surveys and observed at a fairly high tide. Large assembly of purple urchins found in a ocean accessible channel with adjoining tide pool (photo).There wasn't much in the way of a drift line but any accumulation in the rocks or pools was all organic, no plastic or other garbage noticed except for to chunks of Styrofoam. By the way, on the return trip walking back around Devil's Churn I noticed in the churn froth a noticable concentrated purple foam gathered (photo).Nice day!! Looking forward to covering more territory when the tide is low. Access will be difficult due to private property access issues and delicate shore hillsides susceptible to erosion. Visual scanning of the rocky basalt headlands didn't indicate much life but walking the rocky spray line, channels and pools showed a diverse and complete ecosystem that needs to be observed up close. (photo)
  • Purple foam in the Devils Churn with the other froth.
    Purple foam in the Devils Churn with the other froth.
    Devil's Churn
    September 24, 2015
  • Patch of soil slippage
    Patch of soil slippage
    not available
    September 24, 2015
  • Purple urchins gathered in a large tide pool.
    Purple urchins gathered in a large tide pool.
    not available
    September 24, 2015
  • Another photo of purple foam in the Churn
    Another photo of purple foam in the Churn
    Devil's Churn
    September 24, 2015
  • Chiton in tide pool. ID?
    Chiton in tide pool. ID?
    not available
    September 24, 2015
  • Urchins and crab on rocks
    Urchins and crab on rocks
    na
    September 24, 2015
  • urchins
    urchins
    na
    September 24, 2015
  • urchins with kelp
    urchins with kelp
    na
    September 24, 2015
  • Photos of what I think is a lava tube spilling from the base of Cape Perpetua with large lave boulders scattered in proximity.
    Photos of what I think is a lava tube spilling from the base of Cape Perpetua with large lave boulders scattered in proximity.
    na
    September 24, 2015
  • Lava tube at base of Cape Perpetua
    Lava tube at base of Cape Perpetua
    na
    September 24, 2015
  • Took this picture of with a ~total of 9 perfectly round holes in a basalt ridge. I am assuming they are some kind of core sampling?
    Took this picture of with a ~total of 9 perfectly round holes in a basalt ridge. I am assuming they are some kind of core sampling?
    na
    September 24, 2015
  • Took this up close pic of what I think is some shorebird regurgitation.. perhaps a gull?
    Took this up close pic of what I think is some shorebird regurgitation.. perhaps a gull?
    na
    September 24, 2015
  • sea grass in tidal pool/channel
    sea grass in tidal pool/channel
    na
    September 24, 2015
  • View looking south at general location of urchin sighting
    View looking south at general location of urchin sighting
    na
    September 24, 2015
  • Some folks enjoying the Churn looking at the odd colored purple foam.
    Some folks enjoying the Churn looking at the odd colored purple foam.
    DC
    September 24, 2015
Other Mile 191 Reports (4)

2018

August 7, 2018 - LyndaC
A cool, windy day at the coast being enjoyed by a very large number of visitors.  Low tide was 2.7 ft at 4pm approximately so high on beach and rocks at Cape Cove.  Parking lots full in the afternoon...

2017

March 10, 2017 - LyndaC
Tide too high to get close to the beach, still an exciting time to be there.
  • High tide at Cape Perpetua

2016

April 18, 2016 - Anonymous
Mile surveyed by air; aerial photos provided.
  • Aerial image taken by Briton; Roughly in the center of mile 191, over the Pacific Ocean, looking back towards shore, about 250 feet above sea level.
  • Aerial of 191
  • Aerial of 191 looking north
  • Aerial of 191 looking south.
  • Aerial of 191
  • Aerial of 191- north end.
  • Aerial of 191- south end.

2007

June 22, 2007 - gjport
The mile was remarkably clean of litter and ocean debris. Found 2 plastic bottles and a couple of small pieces of styrofoam, all ocean debris. The tidal pools and mussel beds to the north of the...