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Our Team

John Fulford 

John founded Turnstone in 1997 after traveling for years building zoo exhibits around the country. John enjoys researching the geology and history of the features and ecosystems the company replicates, and building structures that will endure. The time he spends in the backcountry and his travels inform and inspire his work.

Heidi Nellessen 
Office Manager

Heidi wears many hats at Turnstone. She is our main point of contact at the office, working on contracts and invoicing, insurance, safety, and beyond for our team and clients. She is a chef and loves the outdoors. In her spare time, you will find her whipping something up in the kitchen, running or hiking. You might also find her watching a movie with some cake and/or ice cream in hand.

Paul Keller  Superintendent

Paul joined the Turnstone team in 1998 and has led projects ranging from zoo exhibits to both formal and natural water features. Paul has a strong and dynamic sense for natural stone placement, and he designs and builds complex mechanical systems to move water efficiently and with a subtle effect. He recently built the Asian Claw-Footed Otter Exhibit at the Woodland Park Zoo's Bamboo Forest Reserve.

Andrew Dornan  Landscape Architect

Andrew anchors the Turnstone design team, utilizing his training in landscape architecture to integrate Turnstone's work with each project's setting. He earned his landscape architecture degree from the University of Washington and has worked at several firms in the Northwest since graduation in 1998. Andrew's love of plants and horticulture inspires his work. 

Erik McCormick
Lead Artist / Superintendent

Along with being a WABO-certified structural steel welder, Erik is an expert in all vertical cement carving techniques. He leads an extremely talented crew of artists whose individual accomplishments are far too great to list here. Check out

Brandon Powell
Head of Operations
a.k.a. "Ops"

Brandon has been living with shotcrete since the amazing day he was birthed from a Ready-Mix truck. He has been flown around the world to work on concrete pumps, and now he resides with Turnstone keeping our fleet of diesel motors running mean and clean.  

...and the Rest of the Crew


The Turnstone crew is one of the most talented and professional groups of people you'll ever meet. They just can't help it.

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