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Irvine Ranch Natural Landmarks

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  • AboutLearn about the land
    • As Rare as a Rainforest
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  • ExploreTake a tour of the land
    • Big Canyon Nature Park
    • Black Star Canyon Wilderness Park
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    • Buck Gully Reserve
    • Crystal Cove State Park
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    • Irvine Regional Park
    • Laguna Coast Wilderness Park
    • Limestone Canyon Nature Preserve
    • Loma Ridge Nature Preserve
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    • Mile Square Regional Park
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    • Native Seed Farm OCP
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    • Peters Canyon Regional Park
    • Quail Hill
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    • Weir Canyon Nature Preserve
    • Whiting Ranch Wilderness Park
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      • Native Seed Farm
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  • Learn about the land the Land
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  • Choose Your Adventure: How to Register
  • Discover the Landmarks Together
  • East Sinks Viewing Deck
  • Take a tour of the land the Land
  • Hiking and Fitness
  • Home
  • My Account
  • OC Parks Volunteers
  • Privacy Policy
  • Register
  • Soaring from the Mountains to the Sea
  • Survey
  • Thank You for Your Interest in Volunteering for Irvine Ranch Conservancy!
  • Thank You for Your Interest!
  • Thank You for Your Interest!
  • Trail Closures
  • Tuesday Email: Did You Know?
  • Tuesday Email: General IRC Updates
  • Tuesday Email: IRC-led Activities Needing Support
  • Tuesday Email: Nature News
  • Tuesday Email: Training & Enrichment Opportunities
  • Tuesday Email: Volunteer Events & Highlights
  • Virtual Wildflower Tour
  • See how you can help Opportunities
  • Volunteers: Ways to Stay Engaged During COVID-19
  • Web Site Guide
  • Website Under Maintenance!

Special Events

Upcoming Activities

  • Fire Watch Outreach Event: Lake Forest Wildfire Preparation Pop Up Event - Portola Park - Sat, 07/19/2025 - 9:00 am - 12:00 pm

Free Field Guides

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Discover the many species found in the Irvine Ranch Natural Landmarks with these free, downloadable field guides:
Common Animals Animal Tracks
Common Plants Arthropods
Birds Invasive Weeds
Wildflowers Butterflies

Where Do You Want to Explore Today?

  • Big Canyon Nature Park
  • Black Star Canyon Wilderness Park
  • Bommer Canyon Preserve
  • Buck Gully Reserve
  • Crystal Cove State Park
  • Fremont Canyon Nature Preserve
  • George Key Ranch Historical Park
  • Gypsum Canyon Wilderness
  • Helena Modjeska Historic House and Gardens
  • Historic Yorba Cemetery
  • Irvine Open Space Preserve
  • Irvine Ranch Historical Park
  • Irvine Regional Park
  • Laguna Coast Wilderness Park
  • Limestone Canyon Nature Preserve
  • Loma Ridge Nature Preserve
  • Mason Regional Park
  • Mile Square Regional Park
  • Modjeska Canyon Nature Preserve
  • Native Seed Farm OCP
  • OC Zoo
  • Orchard Hills
  • Peters Canyon Regional Park
  • Quail Hill
  • Red Rock Wilderness
  • Saddleback Wilderness
  • Santiago Oaks Regional Park
  • Upper Newport Bay
  • Upper Newport Bay Ecological Reserve
  • Weir Canyon Nature Preserve
  • Whiting Ranch Wilderness Park
  • About the Land
  • Activities and Programs
  • Explore the Land
  • Volunteer Opportunities
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  • Privacy Policy
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