The area to the east ( now the site of the Concord Naval Weapons Station ) was the site of a few enormous wheat ranches over 5,000 acres ( 20 km ) .
Was almost a sea of wheat all the site to the marshes bordering Suisun Bay .
The area to the east ( now the site of the Concord Naval Weapons Station ) was the site of a few enormous wheat ranches over 5,000 acres ( 20 km ) , and was almost a sea of wheat all the way to the marshes bordering Suisun Bay .