Moderate Hike. Wildflowers are blooming and showing their bright colors. Purples, yellows, whites, and reds dot the hillsides and valleys at higher elevations. Bask in the natural beauty that sprouts from the ground. Find these flowers along the trail as volunteer naturalists share stories and uses for some of our native plant species. Registration for most programs begins on the 20th of the month before the event. Registration required. Register Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you'll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.