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Field Trips

Sunday afternoon, March 14, 2010

Desert Wildflowers in Whitewater Canyon Preserve

hosted by Riverside/San Bernardino Chapter

The Whitewater Canyon Preserve lies at the end of Whitewater Canyon Road, north of Palm Springs off Interstate 10. Located at the western edge of the Colorado Desert, the canyon has a diversity of vegetation reflecting its proximity to the Mojave Desert as well as influences from the coast. Some rare species, including the endangered triple-ribbed milkvetch (Astragalus tricarinatus) may be encountered. The Whitewater River runs through the preserve and supports desert riparian vegetation.  The preserve is managed by the Wildlands Conservancy which has restored the former Whitewater Trout Farm. We will tour the preserve including areas targeted for restoration. Then we’ll take a leisurely hike up Whitewater Canyon to explore the native flora and dramatic landscapes. The trail is in the river bottom so is rocky in places but relatively flat.

South Hills Wilderness Area of Glendora

hosted by San Gabriel Mountains Chapter

led by Dick Swinney

South Hills Wilderness Area is a 220 acre park purchased by the City of Glendora in 1970.  The area is part of the Los Angeles Basin Region, containing Chaparral, Coastal Sage Scrub and Southern Oak Woodland plant communities, with both the Coast Live Oak and California Walnut elements.  This portion is mostly sedimentary, of sandstone and siltstone.  We will meet under the I-210 Frwy, at Bonnie Cove Avenue.  We will all drive into the Wilderness Area via the Bonnie Cove Extension and the South Hills Motorway (dirt).  We will enjoy a circular 1/2 mile loop with beautiful views of the San Gabriel Mts. backcountry.  The Toyon, Mustard and South Hills Trails, will allow us to get a good glimpse of the area's plants now in bloom.  These will include Bowlesia incana and Zygadenus fremontii.  For a list of the South Hills Plants, see Dick's website at

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