Bioblitz at Empire Mine

Shrub with large number of puffy cream-colored round flowers
Coyote brush (Baccharis pilularis) in bloom at Empire Mine

Saturday, July 13, 8 a.m. to 11 a.m. (NOTE: Start time is now earlier, because of hot weather!)

Be a botanist for a day! Join a bioblitz at Empire Mine State Park in Grass Valley. Redbud is partnering on this event with a team made up of collaborators from the Center for California Academy of Sciences and Stanford University.

In case you are not familiar, a bioblitz is a gathering of folks in one place at one time to document as many species as possible. It’s pretty fast, fun, filled with plants, and a great way to learn to identify some more native species (for those of us who are still learning).

With this effort, we are supporting research into climate-driven shifts in forest composition. You can read more about the research here. It’s an important article about how forests in the Sierra have been changing.

Check out iNaturalist for Citizen Science

We will be using the iNaturalist app for this event. We will gather together, do some brief introductions, split up to hike two or three trails, and then convene again at about 10:30 for a debrief and some snacks.

If you’re not already using iNaturalist on your smartphone, you’ll want to be ready to use it during the bioblitz (and beyond)! Here are several ways to prepare:

What to bring and wear

Because it’s a bioblitz, please bring your smartphone with the iNaturalist app already downloaded, your Redbud Trees and Shrubs book (you’ve got one, right?), a magnifying lens if you have one, and whatever else you use to identify plants when you’re on the trail.

Dress for the weather. Wear sturdy hiking boots or shoes, and bring water, snacks, a sun hat, and/or sunscreen.

Registration and waiver: Advance registration required. The trip will be limited to 30-40 people.

Participants must also sign a waiver, preferably online in advance. (This link is also in the registration form, so it’s easy to do while you’re registering!)

Empire Mine is at 10791 E Empire St, Grass Valley. Meeting Place: Visitor Center parking lot. (That’s the larger, upper parking lot on Empire Street.) Meet at the top, farthest away from where you drive into the parking lot.



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