Robert Marcos

Articles by Robert Marcos

Pearls, petroglyphs, and desert shipwrecks

U.S. naval bombing range before pearls.

The Spanish ship was loaded with pearls when it ran aground in the spring of 1615. The shipwreck lies six miles northwest of present-day El Centro inside an active U.S. naval bombing range. The ship ...

Stay Away From Pinto Canyon

I found pictographs of Cabrillo's San Salvador east of Jacumba.

"There’s some petroglyphs over in Pinto Canyon," Frank said as he passed me on the trail. Frank Johnson, a handsome 75-year-old man, with flowing white hair and a superb knowledge of hiking trails, is something ...

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