Join the Redwood Empire Mountain Bike Alliance and the California Native Plant Societyffor a mountain bike-powered Rare Plant Treasure Hunt at Trione-Annadel State Park as part of the City Nature Challenge.

Help monitor recovery of the burned park by riding park trails and using the iNaturalist app to photograph as many plants and animals things as we can find. Participants will learn how to use the iNaturalist app to identify "fire-followers" - plants that only grow in areas that have recently burned.

Be prepared for a moderate ride on fire road, and rocky, uneven single-track (10-12 miles); bring water and a snack. HEAVY RAIN WILL CANCEL THE EVENT. There is a day use fee $7 per car ($6 for seniors). Please pay at STOP sign on Channel Drive. Dogs not allowed. There are restrooms and water at the parking area.

Directions: from Montgomery Drive, turn onto Channel Drive and follow the road in approximately  mile to the STOP sign. Pay fee or display State Park Pass. Drive 1 mile to the large parking lot.

Lunch will be provided after the ride. Participants will receive a free copy of Steven Hartman's "Wildflowers of the San Francisco Bay Area", which they can keep in their packs as a handy ID guide. Registration is free and required. Please visit the event page for registration and detailed event information.