Geology on the Estuary

April 23, 2018

When: Thursday, July 12, 10 am to noon
Where: Neawanna Point, Seaside
Led by: Tom Horning


Explore the south end of the Clatsop Plains where the dunes meet the Necanicum River estuary at Neawanna Point Habitat Reserve. These forested dunes 2,000 to 3,000 years old are slowly being eroded by storm waves. For eons, marshes in the estuary have been filling with flood plain sediments and peat. Post-Ice Age sea levels have risen to flood and create inter-dune lowland marshes and streams, and every now and then, massive earthquakes and tsunamis have violently modified the landscape.  See, touch, and taste the evidence, if you dare! Learn why tribal people have always loved this place. These natural processes create habitat, from upland forest to high-saline and freshwater marshes.  Meet the plants and critters that live here and scope out their survival strategies.

TOM HORNING grew up in Seaside and earned his master’s degree in geology at Oregon State University. He returned to Seaside in 1994 and opened Horning Geosciences, a geological consulting service. Tom joined the board of NCLC in 1996 and has been actively involved with the land trust ever since.

Walk info: We will be strolling mostly off-trail in forest and salt marsh, on very uneven ground in places; expect to get your feet wet. No toilets on site. No dogs allowed on site.

What to bring: Water and snacks. Wear waterproof boots or sturdy walking shoes and dress for the day’s weather.

This program is free, but registration is required.

Comments are closed.