India, May 13 -- Next Adventure, a beloved Portland-based outdoor store, will be closing all four of its store locations by the fall, after 28 years in business, KOIN reported. The decision follows the retirement announcement from co-owners and childhood friends Deek Heykamp and Bryan Knudsen.

"We've been in business for 28 years, and we've loved every minute of it and loved Portland," Deek Heykamp told Willamette Week. "You come to a point in your business life where you have to make a decision, and we decided to retire."

Founded in 1997, Next Adventure grew into a major local retail success, employing nearly 200 people and generating $24 million in annual sales at its peak.

The closures will affect all four locations: the flagship he...