Irvine Ranch Natural Landmarks

Sahara mustard is a nasty non-native plant that has invaded thousands of acres across Southern California and has encroached at spots on the Irvine Ranch National Natural Landmarks. Now is the time to act to keep this highly invasive plant at bay! Loma Ridge was the initial encroachment and this population has been contained and steadily reduced over the last seven years through hard work performed largely by volunteers. Your help is needed to search for and remove any new mustard plants that have come up from seed. This event will include bending, kneeling and walking across slopes and uneven terrain. All training and tools will be provided. We hope you can join us!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

Please note that you will be asked to adhere to the following protective measures during the activity in order to participate:

• Be registered in advance, no walk-up registration is permitted.
• Arrive with all necessary equipment to keep you safe on the trail, including water, proper attire, and closed-toe footwear, first aid, health needs etc.
• Restrooms will be available, but facilities will not be sanitized for each individual.
• All participants are required to sign a liability waiver upon arrival at the staging area and before beginning the activity. The waiver can be previewed here: IRC Liability Waiver
• You may be prevented from participating if you do not adhere to the above protocols.

Additionally, in an effort to respect and protect all employees, volunteers, and participants, please do not sign up or attend if you are not feeling well, exhibiting any symptoms of illness or have been in recent contact with someone who was ill.