Consumption of intoxicants prohibited. Park only in designated areas. Radio-controlled models are prohibited. All fires are prohibited. Fire prevention must be the first concern of every visitor. Use of motorized vehicles and equipment is prohibited. Possession or use of firearms or weapons is prohibited. No pets. (horses exempt) Swimming or...

The County is requiring that you (the reservation holder/customer) comply with any and all current health orders and guidelines issued by Federal, State, or local government agencies that apply to your activity. These guidelines are changing often, and it is your sole responsibility to monitor the guidelines which have a...

In the winter of 2000 as the new Visitor Center was being installed, several volunteers gathered together and began planting what today is a one acre Butterfly Garden. This is an area that has been planned thoroughly to attract not only the adult butterflies but also the larval form of...

ADA Mobility Device Rules Effective March 15, 2011 Introduction On September 15, 2010 the United States Department of Justice (DOJ) revised rules to the Americans with Disabilities Act (ADA) effective March 15, 2011. These rules allow a mobility device defined by DOJ rules as a wheelchair to be permitted in...

Consumption of intoxicants prohibited. Possession or use of firearms or weapons is prohibited. Park Subject to closure during rainy weather. Park only in designated areas. Smoking in designated areas only. The park depends on visitors to protect all wildlife, vegetation, features, and improvements. No domestic animals permitted inside building(s). Dogs...

The Silverado Fire ignited Monday, Oct. 26 and burned more than 12,000 acres in Irvine, Lake Forest and Silverado, including portions of Whiting Ranch Wilderness Park and Limestone Canyon Nature Preserve in the Irvine Ranch Open Space. We will provide operational updates for the affected parks on this page as...

Garden Family Picnic Area Interpretive Programs Museum Restrooms Picnic Tables

In 1893 George B. Key and his wife Mary came to Placentia, where he was the superintendent of the 110-acre Southern California Semi-Tropical Fruit Company Ranch, owned by Richard Gilman. That year Mr. and Mrs. Key purchased twenty acres on the northwest corner of what is now Placentia Avenue and...

Fees OC Parks' Commissions and Committees Programs on the Irvine Ranch Open Space