Authors & Presenters



posted Feb 12, 2018

Danny Basch

Danny Basch, National Park Service - Facility Manager of Operations, Rocky Mountain National Park Danny Basch is an active trail user and enthusiastic advocate. His love for the outdoors was fostered as a youngster in what is now Cuyahoga Valley Nati...


posted May 16, 2019

Danny Gross

Danny is the founder and Chief Geek at National Park Geek. National Park Geek is a movement to share and enhance our National Parks founded in 2015. The movement helps to share the park spirit daily on Instagram@nationalparkgeek through images from a...


posted Aug 25, 2020

Dat Nguyen

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posted Apr 21, 2020

Dave Magill

Dave Magill is MD Advocacy Director for MORE, Mid-Atlantic Off-Road Enthusiasts. MORE has been "Riding Bikes and Building Trails since 1992" and currently maintains 750 miles of trails in the DC metro area. In 2019 we built or helped build almost 50 ...


posted Jan 22, 2021

David Berrigan

David Berrigan, Ph.D., M.P.H., has been a Program Officer in the Division of Cancer Control and Population Sciences since 2003. He graduated from Mendocino High School in northern California and has a PhD from the University of Utah and an MPH from U...


posted Jun 6, 2018

David Gamble

David Gamble, AIA AICP, is a Lecturer in the Department of Urban Planning and Design at Harvard University’s Graduate School of Design where he teaches courses in urban design, planning and real estate. He is Principal of Gamble Associates, a Cambrid...


posted Jun 7, 2018

David Halsey

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posted Mar 14, 2018

David Lindhaul

David Lindahl is a Principal of Morton Trails with 20 years of professional experience in real-estate, land-use planning, appraisal, property transactions and negotiations, environmental management, and economic analysis. David received his undergrad...


posted Jun 11, 2019

David Loutzenheiser

David Loutzenheiser has been with MAPC since 2008. He manages projects primarily in the area of bicycle transportation, walking, and related areas. Mr. Loutzenheiser champions a growing number of projects and plans to bring cycling and walking transp...


posted Jan 22, 2021

David R. Brown

David R. Brown, Ph.D., is a Senior Behavioral Scientist with the Centers for Disease Control and Prevention, Division of Nutrition, Physical Activity and Obesity, Physical Activity and Health Branch, Atlanta, GA. His education and training are in Exe...