Cottonwood Sand Mine in Rancho San Diego Unanimously Rejected by Board of Supervisors
By Paul Levikow / East County Magazine / Sept. 10, 2025
The Cottonwood Sand Mine project in Rancho San Diego was rejected unanimously Wednesday by the San Diego County Board of Supervisors.
In a packed board room, the supervisors heard from more than 100 speakers in a span of over two hours, including more than a dozen by phone.
The vote apparently means the end of a years-running saga for East County residents since sand mining along the Sweetwater River was first proposed seven years ago.
In July, the San Diego County Planning Commission voted to deny a Major Use Permit and Reclamation Plan for the project. That led the project applicant, Cottonwood Cajon ES, LLC, to appeal the decision to the Board of Supervisors.
The project proposed converting part of the Cottonwood Golf Club on Willow Glen Drive in unincorporated El Cajon into a 10-year sand mining operation, with an additional two-year reclamation period.
Once word got out that the plan would involve sand excavation and processing on 214 acres of a 280-acre site, and that the operation would run from 7 a.m. to 5 p.m., Monday through Friday for 10 years, opposition proved fast, furious and focused.

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