Hawthorn Hollow Welcomes You…

Hawthorn Hollow grew out of love for the land. As a nature sanctuary and arboretum, Hawthorn Hollow has been connecting people and nature through environmental education for more than 50 years. Walking trails invite visitors to explore a 12-acre arboretum, the woodlands of the Pike River Valley, prairies, gardens, and historic buildings of Somers’ past.

Hawthorn Hollow is owned and operated by the Hyslop Foundation, Inc., a non-profit 501 c3 organization formed in 1964.

Our Mission

Our mission is to cultivate appreciation, understanding, and stewardship of our natural and local heritage through environmental education and sanctuary preservation.


Admission for individuals into Hawthorn Hollow is always free and open to the public. As a nonprofit organization, donations are always gratefully accepted. Donate here!

Nature Sanctuary Etiquette

Please help preserve this sanctuary by observing the following rules:

  • Be mindful of the serene atmosphere, it is a place for the study and appreciation of nature.
  • No active sports or games (biking, jogging, skiing, ball games, fishing, etc).
  • Please leave flowers and plants for everyone to enjoy. Do not collect or remove plants, seeds, flowers, leaves, or any other natural materials.
  • Children must be accompanied by an adult. Connect with nature together.
  • Walk on marked trails and mowed lawn only, and please refrain from climbing on trees and shrubs.
  • Pets are not allowed. Service dogs only.
  • Picnicking is prohibited.
  • Reservations are required for groups larger than 10.
  • Photography permits are required for all posed formal photography and video. Download the Guidelines here.

Hours of Operation

March 1 – October 31:  8 am – 5 pm
November 1 – December 23:  8 am – 4 pm

Mondays & December 24 – March 1

The Friends of Hawthorn Hollow

The Friends of Hawthorn Hollow was established in 1988 to help preserve, maintain, and further improve Hawthorn Hollow. This organization, separate from the Hyslop Foundation, provides financial and maintenance support through memberships, fund-raising events, boutique sales and volunteer workdays. Click here to become a member.


Hawthorn Hollow is located approximately 4 miles east of I-94, just west of Petrifying Springs on Green Bay Road (Highway 31) in the town of Somers.

Hawthorn Hollow

880 Green Bay Road
Kenosha, WI 53144
Phone: 262-552-8196

Meet the Staff!

TJ Leveque

Executive Director


Laura Smith

Marketing & Rentals Manager


Kailyn Palomares

Naturalist & Education Manager


Emily Leonard

Chad Jocius

Maintenance & Observatory Manager

Chad@HawthornHollow.org  observatory@HawthornHollow.org

Jeremy Haag

Event & Administrative Coordinator


William Parker

Observatory Director