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Cook's Chasm Spouting Horn

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description Cook's Chasm Spouting Horn Overview

Cook's Chasm Spouting Horn is a coastal blowhole in the Cape Perpetua Scenic Area near Yachats, Oregon. Waves entering a channel and cave in the volcanic shoreline compress water and air, producing a plume through an opening in the rock when sea conditions are favorable. The feature lies within Siuslaw National Forest and is managed by the U.S. Forest Service, making it a destination for visitors interested in Pacific Coast geology and wave action.

help Cook's Chasm Spouting Horn FAQ

When is Cook's Chasm Spouting Horn most active?

The plume is strongest when a substantial incoming swell forces water and compressed air through the opening in the basalt shoreline. Tide alone does not guarantee a display, so calm ocean conditions can make the spout much less dramatic.

Where is Cook's Chasm Spouting Horn located?

It is in the Cape Perpetua Scenic Area on the central Oregon coast, south of Yachats. The viewpoint is near the Cook's Chasm roadside area along U.S. Route 101.

Is the Spouting Horn the same feature as Thor's Well?

No. Both are found around Cook's Chasm, but the Spouting Horn throws spray upward through a rock opening while Thor's Well resembles a large opening into which seawater pours and drains.

Can visitors walk onto the rocks beside the Spouting Horn?

The marked viewing areas provide the safer way to watch it because large waves and slippery volcanic rock make the shoreline hazardous. Cape Perpetua visitors should remain behind barriers and never turn their backs on the Pacific.

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