Mangini Ranch Wildflower Hike

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5318 Crystyl Ranch Drive

Concord, CA 94521

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Event description


Mangini Ranch, purchased by Save Mount Diablo from the Mangini family in 2007, is a little 206-acre gem in the Diablo foothills. Two of the features that make it unique are plants. Mangini is home to the northern-most stand of desert olives (Forestiera pubescens) and to the rare and endangered Hospital Canyon larkspur (Delphinium californium ssp. interius). The larkspur will be blooming when we take our hike. With some luck, and lots of rain, we may see a little swale carpeted with wildflowers.

Land: Save Mount Diablo

Rating: Moderate

Distance: 2 miles

Elevation change: 300’

Leader: Save Mount Diablo Property Steward David Ogden

Meet: Hiker gate adjacent to 5318 Crystyl Ranch Drive in Concord, CA

Directions: From Ygnacio Valley Road, turn south on Crystyl Ranch Drive in Concord. Meet at the hiker gate on Crystyl Ranch Drive between Autumn Oak Circle and Rolling Woods Way.

Frequently Asked Questions

Are dogs allowed on Discover Diablo hikes?

No. Some Discover Diablo hikes take place on land owned by other organizations (such as Mount Diablo State Park & East Bay Regional Park lands) and many of the trails on these properties have a strict no-dog policy.

Are there ID or minimum age requirements to enter the event?

Anyone under the age of 18 will need to be accompanied by a parent or guardian.

Do I have to bring my printed ticket to the event?

No. On the hike day, we will have a roster with your registration information on it. Please make sure to check in with the hike leader.

Can I update my registration information?

Yes. If you would like to change anything, please contact Denise Castro at

How can I contact the organizer with any questions?

You can reach Denise Castro, Outreach & Education Associate, at

Is there a charge for these hikes?

The hikes are free. Some hikes are in a park with an entrance fee, which you can pay with cash or check. If you pay cash, you may need exact change.

What should I wear?

We recommend long pants, sunscreen, and a hat. Dress in layers. Running shoes are OK. For strenuous hikes, we suggest sturdy hiking boots.

What should I bring to these hikes?

Bring a bottle of water, snacks, and sunscreen. A hat is highly recommended. For hikes that are in a park with an entrance fee, bring exact change or a check (sometimes the park entrance does not have an attendant, or the attendant does not have change).

What conditions mean the hike will be canceled?

We will cancel the hike if there is heavy wind or rain, extreme heat, fire, or any red flag warnings.

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5318 Crystyl Ranch Drive

Concord, CA 94521

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