Steep, Wild Country, No Facilities

A favorite spot for birding, the Modini Preserve is traversed by Pine Flat Road, a public county road that meanders through the Preserve allowing visitors to enjoy the views and birdwatch from roadside public pullouts anytime without appointment. Please drive very cautiously, this is a one-lane winding road with very limited sight lines.

Volunteer Workdays

The Modini Preserve Stewards provide essential hands-on assistance to our land management team, including trail maintenance, invasive plant removal, native plant propagation, and other special projects. Come learn more about the Preserve by getting your hands dirty!

We meet on the 2nd and 4th Thursdays of most months from 9:00 a.m. – 1:00 p.m., as well as the last Saturday of every month, 10:00 a.m. – 1:00 p.m. To learn about our stewardship program or the Modini Preserve Stewards, contact ACR Resource Ecologist Kyle Doron by email .


The Modini Preserve is located above Alexander Valley near Healdsburg, California, in the Mayacamas Mountains.
Pine Flat Road is about 7 miles northeast of Healdsburg.

Frequently Asked Questions

How can I obtain permission to hike on the Preserve?

At this time, no independent hiking is allowed on the Preserve but Pine Flat Road public pullouts are always open for taking in the views and birdwatching.

What is there to do at the Modini Preserve?

From the public pullouts on Pine Flat Road, visitors enjoy nature photography, birdwatching, wildflowers, geology and other nature studies. Collecting is prohibited.

How much do you charge?

There is no fee to visit the Preserve via the public pullouts along Pine Flat Road; however, donations are appreciated as they support ACR's preservation, education and conservation science programs.

Are there guided tours?

Not at this time.

Is there food or water available on the Preserve?


Are overnight accommodations available for the visiting public? 

No, we have no overnight facilities.

Can the site be rented for weddings and events?

No, we have no facilities.

Are you still open if it rains?


Are dogs allowed on the Preserve?

Sorry, no dogs or other pets are allowed on the Preserve except for service animals, i.e., any guide dog, signal dog, or other animal individually trained to provide assistance to an individual with a disability.

Please note that there is no smoking on the Preserve.

Photo Credits: 

  • Michelle Cooper