Cargo Muchacho Mountains Field Trip (Cargo Muchacho flier)
December 5-6, 2020
Meet 8:30am, Depart: 9:00am
Leader: Margaret & Bill Hogarth, Jimmy Peterson
Contact Bill for logistical/information inquires
Cell# 909-264-1122 ; Email:
Masks are required for close contact. No potluck.
The Anaheim Searchers will be headed to the Cargo Muchacho Mountains in the southeast Colorado Desert in the Lower Colorado River Valley, in Imperial County, California. This will be an exploratory/prospecting style trip. We will arrive at the site on Friday, December 4. We will camp at an open area near the American Girl Mine (Google map link).
Get gas in El Centro or there is a gas station 4-5 miles past Ogilby Road at 611 Sidewinder Rd N, Winterhaven, CA 92283.
From Highway 8, Exit Ogilby Road, cross the highway and go north. Go 4 miles, cross the railroad tracks, and shortly after that turn right on American Girl Mine road. In about 2 miles, just before the Y in the road, you'll see a large flat open area where we will be camping. GPS Coords: [32.832143, -114.814761]
Watch for the Searcher signs! There is off-road vehicle activity in the area so we might have neighbors in the campsite.
Saturday we'll meet at 8:30 a.m. in the campsite.
We'll explore Site B  and look for dumortierite, agate, jasper, petrified wood and/or petrified palm. We'll check out the Tumco Ruins and Gold Rock Trading Post. If we have time we might go to Winterhaven Geodes [1,3] and check for geodes, chalcedony, agate, and nodules. We might explore other sites as time allows.
On Sunday morning we'll look for kyanite by the American Girl Mine area , and then head home.
Since this is a new area for us, we recommend 4-wheel drive high-clearance vehicles. Camping is dry; bring all water and food as necessary. It might be cold at night.
1. James R. Mitchell’s Gem Trails of Southern California (2003), pages 26-27 for Winterhaven Geodes; pages 30-32 for Cargo Muchacho Mountains region
2. Mindat for American Girl Mine (Cargo Mine; Cargo Muchacho Mine) :
3. Mindat for Winterhaven