Born and raised in Glens Falls, he went to St. Mary’s School and then Adirondack Community College in Queensbury, studying architecture. After college, he went out west to work and ski at several resorts in Colorado.

Returning east, he worked in carpentry and construction in the Lake George area before coming to Lake Placid as a union carpenter to be a supervisor for the bobsled run construction for the 1980 Winter Olympics.

While in Lake Placid in 1979, he met Pam, the love of his life. They married in 1987. He built their home in 1990 with his carpentry and architecture expertise, and in 1994, they welcomed the birth of a son, Billy, who would be his best friend on many lifelong adventures, passing down his wisdom of building and his love of the outdoors.

Mark loved fishing, canoeing, boating, hiking, cross-country skiing, trail cams and his springer spaniels, sharing his knowledge and passions with Billy and Pam. He helped Billy in Troop 10 of Cub Scouts and Boy Scouts, encouraging his son to achieve Eagle Scout and helping lead part of the Cub Scouts for several years. He continued doing carpentry in the area, caretaking a few camps on Lake Placid and helping his many friends with any projects they needed. Mark spent a few years in partial retirement.

He is survived by his loving wife of 37 years, Pam; son Billy; brother Al Bellos (Joan); sister Christine; nieces Alesandra Bellos, Sarah Bellos, Katherine Bellos, Stephani Piccolo and Ryka Lovis (Will); nephews Brent Lagerman (Teresa), Nils Lagerman and Kresten Lagerman; his dog Moose; and many dear friends.

He was predeceased by his father Albert Bellos and mother Anne Fahrenkopf Bellos.

A Mass of Christian burial will be held at St. Agnes Church at a time and date to be announced. The M.B. Clark Funeral Home, in Lake Placid, is in charge of arrangements.

In lieu of flowers, please consider a donation to the Lake Placid Public Library, where Mark was an avid patron.

Visit www.mbclarkfuneralhome.com to share a memory, upload a photograph, sign the guest book or leave condolences.