Mile 112 Report

September 10, 2006
by rheadohner

Agate Beach, Threemile Creek, south Sacchi Beach
Sunday 9:30 AM
Calm/Light from the N
Humans / Pets:
Shellfish collection
Cars/Trucks parking:
RVs/Buses parking:
RVs/Buses parking: 0
Activity Comments:
Notable Wildlife:
50 birds
Dead Birds:
Dead sea lion on rocks above wrackline. Partially covered by sand No evidence of gunshot
Fish & Invertebrates:
Kelp or Algae·Animal casings (e.g. crab, shrimp molt)·Animal casings (e.g. crab, shrimp molt)·Ocean-based debris (from fishing boats, ship trash, etc.)·Shells
New Development:
Natural Changes:
Major sand accumulation continues - in some areas 3 - 5 feet above early summer levels. Compared to 2004 the sand is 8 - 10 feet higher and a large pile of driftwood is almost completely covered. Many other sea stars and anemones seen on rocks at water edge. tide pools are all shallow due to sand buildup.Dr. John McGowan says this is the most sand they've seen on Agate Beach in the 33 years they've had their cabin.
Kelp, shells, crab casings, and ocean-based debris in driftline. Large number of foraging shorebirds. One dead sea lion with evidence of gunshot, major sand accumulation. In some areas 3-5 feet above early summer levels. 8-10 feet higher than 2004 levels. Drift logs almost covered with sand. Dr. John McGowan-Mile 113, reports that this is the most sand he has seen on Agate Beach in 32 years! Sea Stars and anemones on rocks at water edge. Tidepools shallow due to sand deposition. Low human impact (0).
Other Mile 112 Reports (24)


January 8, 2022 - ArsenaultR
Windy cold day with lots of debris to the edge of the cliffs. Much sand pulled away, exposing the black sands and some rocks (petrified woods, jaspers etc). More boating debris than previously seen,...


June 16, 2018 - rheadohner
Major loss of sand btween 3 mile and 5 mile creeks. No logs and stumps, large bunches of kelp. Only two sea stars and no anemones or rocks and tidepools.
June 16, 2018 - Anonymous
Major loss of sand btween 3 mile and 5 mile creeks. No logs and stumps, large bunches of kelp. Only two sea stars and no anemones or rocks and tidepools.


September 20, 2015 - rheadohner
Major increase in sand covering many landmarks and up to 5' gain. Much sand blown up side of cliff.Significant rearrangement of driftwood on south portion mile 112. Part-time residents and summer...


March 30, 2013 - rheadohner
Warm,sunny day. Usual access to beach was more difficult due to loss of sand and the driftwood. We continue to have lighter amounts of debris as over the past 18 months. Wood pieces, land- and ocean-...


December 31, 2012 - rheadohner
A mild, unremarkable day on Agate and Sacchi beaches. Kelp/algae, small rocks, wood pieces, plastic pellets, plastic confetti, land-based debris and Styrofoam blown high into the driftwood. The past...
June 11, 2012 - rheadohner
There has been a replenishment of sand and driftwood which had been decreased during December to March. No significant debris on the beach except small plastic pieces. No people on the beach.
  • In March, we had 15 plus inches of rain plus 6 inches of heavy snow.  This erosion occurred as the result of heavy runoff from these storms.  The water came off the hillside and down a roadway.
  • Prior to the winter storms the driftwood here was tightly packed and mostly covered with sand.


June 5, 2011 - rheadohner
A beautiful morning. Some wind-blown sand at 90 degrees to the ocean. Large cylindrical pieces of Styrofoam in rocks on Agate Beach - similar to occurrance in 2008. Shells, animal casings, kelp/...


December 21, 2010 - rheadohner
This was a cool, cloudy day with only a slight breeze. I was on the beach midway between tide extremes. Two people and a dog were walking at waters edge. A new find on this beach were two hard hats...
September 12, 2010 - rheadohner
This was a lovely morning. No one else was the beach. An area of major rock fall was documented and photographed. Bottles, lines,and parts of a large float and 5 gallon jerry can were removed....
June 5, 2010 - rheadohner
Two people and a dog were walking along the water's edge. There were 3 parallel lines of small plastic fragments at what may have been the high tide line. 13 plastic bottles and styrofoam were...


December 29, 2009 - rheadohner
On Agate Beach, there has been continued loss of sand. In the last four weeks there also been a major rearrangement and loss of driftwood.
September 10, 2009 - rheadohner
Minimal debris and kelp this time. Sand continues to build up. Beautiful sunny morning! Kelp/algae, small rocks, animal casings, wood pieces and land- and ocean-based debris in driftline. Truck...
June 24, 2009 - rheadohner
Busy beach due to low tide and many people (44) clamming, tidepooling. Two people on bicycles. Sand is reaccumulating against the cliff, piles of driftwood and seastacks. Small landslide as we...
March 28, 2009 - rheadohner
Kelp/algae, land- and ocean-based debris, plastic pellets and Styrofoam in the driftline. 30 gal. bag of bottles and large fragments of plastic removed from the beach. Will return to remove three...
March 11, 2009 - rheadohner
These photos document the changes that have occurred this winter. One photo taken on June 5, 2009 shows the build up of sand on the beach. The photo taken today shows 5 to 6 feet of dune that was...
  • This shows the 5 to 6 feet of dune that was lost over this winter.  Photo taken on March 11, 2009.


December 20, 2008 - rheadohner
This dispatch is to document the landslide that occurred late in December 2008.
  • The slide covered a pile of pine branches and driftwood and occurred in late December 2008.
September 20, 2008 - rheadohner
Dead California sea lion found among the rocks on Sacchi Beach, ENE of point separating Agate and Sacchi. Shells, kelp/algae, small rocks, wood pieces and land-based debris in driftline. One dead...
  • These were some of the beach debris on Mile 112.
  • This dead male California Sea Lion was found on the south part of Sacchi Beach in the rocks.
  • Here's another photo of the dead Califonia Sea Lion.  The animal is on it's back.  The holes are where scavengers (probably Turkey Vultures and gulls) have pecked at the carcass.
August 28, 2008 - rheadohner
This series of photos shows interesting foam lines that occurred off shore between Mile 112 and 113.
  • Interesting foam lines in the ocean offshore between Mile 112 and 113.
May 18, 2008 - rheadohner
Kelp/algae, animal casings, small rocks, wood pieces, land-based debris and tree large round pieces of Styrofoam in driftline. Harbor Seal pup dead on beach about 150 yards north of Three Mile Creek...


December 30, 2007 - rheadohner
Kelp/algae, shells, wood pieces and wood pieces in driftline. A 55 gal. plastic drum in driftwood at mouth of Three Mile Creek. Shore birds foraging at the surfline. Major removal of sand from...
September 2, 2007 - rheadohner
Kelp/algae, shells, animal casing, wood, large piece of styrofoam and ocean-based debris in the driftline. Plastic garbage was removed from the beach. Many long logs (sawn on both ends) on beach....
March 22, 2007 - rheadohner
Shells, wood pieces, plastic pellets, styrofoam and land-and ocean-based debris in driftline. Landslides and major boulder falls. Large amount of sand remove, up to 6 feet in places. Many rocks...
January 3, 2007 - rheadohner
Massive sand removal exposing rocks the first time in years. Many pieces of driftwood.