July 1, 1920: "The forest service lookout at the summit of the mountain in Trinity county, known as Hayfork Bally, is Miss Elsie Luckie, a young woman of that section. Miss Luckie lives alone at the summit, 15 miles from the nearest ranch house and 6000 feet above sea level." (The Oregonian)
August 3, 1920: "July Lightning Storm on the Trinity. This storm set 24 fires, all of which were put out with but little cost. In addition four cows standing beneath a tree were killed by one bolt. Miss Lucky, Hayfork Bally lookout and Mrs. Leventon, telephone operator at Hayfork received severe shocks while using the line. -- Trinity Forest News." (California District News Letter)
September 9, 1958: The U.S. Air Force acquired approximately one quarter of an acre near the lookout for an unmanned Gap Filler radar station. The improvements included a concrete block building, two 15,000 gallon underground fuel tanks, antenna tower, fencing and an improved gravel road.
April 26, 1963: The site was discontinued and returned to the Forest Service.
National Geodetic Survey
DESIGNATION - HAYFORK BALLY LOOKOUT TOWER PID - LU2132 STATE/COUNTY- CA/TRINITY COUNTRY - US USGS QUAD - HAYFORK BALLY (1982)
DESCRIBED BY COAST AND GEODETIC SURVEY 1961 (JCC) THE STATION IS LOCATED ON THE SUMMIT OF HAYFORK BALLY MOUNTAIN, 15-1/2 MILES SOUTHWEST OF WEAVERVILLE, 8 MILES NORTH NORTHWEST OF HAYFORK AND 6 MILES SOUTH SOUTHEAST OF THE BIG BAR GUARD STATION.
A TRAVERSE CONNECTION WA MADE TO TRIANGULATION STATION HAYFORK BALLY FROM THE CENTER OF THE LOOKOUT, DISTANCE BEING 120.55 FEET OR (36.744) METERS EAST OF THE STATION.
THE LOOKOUT HOUSE IS ON THE TOP OF A 4 LEGGED STEEL TOWER THAT IS 50 FEET HIGH AND PAINTED WHITE.