Razor clamming closes Monday on Clatsop County beaches.
Fish and wildlife officials want to allow young clams to establish themselves on the beach during the summer.
Eighteen miles of beaches north of Tillamook Head will be closed to razor clam digging.
The Daily Astorian reports that it has been a good year for clamming on the Clatsop beaches, with high harvest rates and unusually large clams.
The beaches are the most productive razor clam beaches in the state, accounting for more than 90 percent of the total harvest.
People can still dig for razor clams on other state beaches. Bay clam and mussel harvesting is open coast-wide as well.
This story originally appeared on Oregon Public Broadcasting.