Marblemount mine

An old quarry off Rockport Cascade Road is now proposed for a 79-acre mine that would harvest rock from the hill behind.

Skagit County reissued Thursday its Notice of Development Application for the rock mine proposed in the Marblemount area.

The new notice reopens public comment on various permits for the proposed project until 4:30 p.m. May 13.

Kiewit Infrastructure Co. and Cunningham Crushing propose mining 3.8 million cubic yards of rock from a 79-acre portion of a rock hill southwest of Marblemount.

The proposal has been met with opposition from many who live in the vicinity and are worried about their safety and the environment should the mine be approved.

Skagit County initially accepted public comment March 14-29 on four permits needed for the project. During that comment period, many who submitted letters asked for additional time to review the proposal.

In addition to area residents, several tribes, environment groups and utilities such as Seattle City Light also raised concerns about the potential impacts of the project.

Kiewit Infrastructure declined comment to the Skagit Valley Herald and Cunningham Crushing has not responded to requests for comment.

Comments about the project can be submitted online at, or by mail or in person to Skagit County Planning and Development Services, 1800 Continental Place, Mount Vernon, WA, 98273.

Comments must include the sender’s full name, mailing address and the project name “Marblemount Quarry” in the subject line.

— Reporter Kimberly Cauvel: 360-416-2199,, Twitter: @Kimberly_SVH,

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