Roland K. McFarland, 50, a cartographer with the U.S. Geological Survey since 1952, died Tuesday at his home in Annandale after apparently suffering a heart attack.

At the time of his death, he was a production analysis and evaluation specialist on the staff of the chief of the topographic division at the Survey's National Center in Reston. He worked on national mapping programs.

Mr. McFarland was born in Palmerton, Pa. After participating in the U.S. Navy's V-5 flight training program from 1946 to 1950, he graduated with a degree in physics from Moravian College in Bethlehem, Pa.

He joined Geological Survey as a cartographer in the photogrammetry section of the Atlantic Region Office in Arlington. His mapping assignments included field work in Florida, Indiana and North Carolina.

Mr. McFarland transferred to the photogrammetry section at the Rocky Mountain Mapping Center in Denver in 1962 and returned to the Atlantic Region Office two years later, where he was placed in charge of planning topographic mapping in the states east of the Mississippi.

He was a member of the American Society of Photogrammetry and the American Congress on Surveying and Mapping.

He is survived by his wife, Dorothy Irene, two sons, David Paul and Bruce Roland, and a daughter, Sally Ann, all of the home; two sisters, Marian Fogel, of Hamilton, Ohio, and Anna Marie Stemler, of Palmerton, and two brothers, Harden H., of Willow Grove, Pa., and Clayton S. Jr., of Willingboro, N.J.

The family suggests that experssions of sympathy be in the form of contributions to the Memorial Fund of Congregational Christian Church in Annandale.