Chasing the Grid An Ultrarunners Physical and Spiritual Journey in Pursuit of the Ultimate Mountain Challenge - 24 October 2025

WINDHAM — After a successful career on Wall Street, the Catskill Mountains beckoned.  In Chasing the Grid, author Kenneth Posner, a seasoned corporate worker  and intrepid but non-elite runner, sets out after an ultra-distance mountain running record which nearly destroys him. Along the way, he stumbles upon  an obscure peak-bagging tradition known as the “Grid,” which becomes his  new obsession. Briars and Brambles Books in Windham will host an Author Reading & Book signing Sat. Oct. 25 at 2pm.

The Grid is a project where a determined athlete must run, hike, or climb a  list of peaks in every month of the year, the purpose being to get to know  the mountains intimately, in every season. For New York’s Catskill Mountains, the formula requires more than 400 separate ascents. For Posner,  the Grid turns out to be not just another running challenge; it’s a pilgrimage.  It offers a retreat from the spirit of modern running, often reduced to a one dimensional activity driven by ego and moderated by clocks, in favor of  how our ancestors moved through nature in days gone by––purposefully,  patiently, and mindfully. Posner emerges from the experience as a radically  different kind of runner––now running barefoot across trails and shirtless in  the winter, leaving behind food, water, lights, navigational gear, and even  bug spray. 

By following Posner in his quest to complete the Grid, readers will feel  sandstone fragments under bare soles; pad across a bed of moss as luxurious as a Persian carpet; squelch with him through cool black boreal mud;  dance across snow and ice; and participate in discoveries about the pas sage of time, the energy of nature, and the sense of self. 

About the Author: 

KENNETH POSNER’s running credentials include completing 110 races of  marathon distance or longer and setting fastest known times for the 294- mile Badwater Double in Death Valley and New York’s 350-mile Long Path.  As a barefoot athlete, he has run 112 races, climbed 485 mountains, including every 4,000-footer in the Northeast, and thru-hiked the John Muir  Trail. As board chair for the New York-New Jersey Trail Conference and  Run Wild, Inc., he supports land conservation and stewardship and advocates for connecting young people with nature.