Page 103 - Vol. 1 Walks In The Black Range - 2nd Edition

Garfield/Butler Mine Group was and the Bonanza Mine was located in the valley to the south. Harley (ibid. p 145) believed that the vein that was worked at the Bigelow Mine was an extension of the vein mined at the Mary Richmond Mine on the east side of Richmond Mountain.
Federico Antonio Chavez Luna describes working at this mine in his video interview.
When Steve Elam and I explored this location on March 12, 2015, we found that the main shaft at the Bigelow Mine was finished by boards on all sides for the first 90 feet (framegrab above from video taken by Elam at about 90 feet). Video of the shaft can be viewed on "Mines of the Hillsboro Mining District - Volume One”and "Mines of the Hillsboro Mining District - Volume 2".
In Bulletin 39, “The Metal Resources of New Mexico and Their Economic Features Through 1954” by Eugene Carter Anderson for the State Bureau of Mines and Mineral Resources (published in 1957) it states that “The Anderson Extension, Biglow, El Oro, Snake, Black Peak, and Portland properties were worked for short periods in 1950 and 1951. In 1952 the district produced 125 ounces of gold.” (p. 124)
The “Diggings” website notes that A. L. Bird
(Frederico Antonio Chavez Luna’s step-father)
owned this mine from 1935 until 1950. In
1950 Manuel L. Trujillo obtained ownership.
The mine first started production in 1885 and the last year of production was 1950. Gold, lead, and zinc are all present in the mining group. “The Bigelow claims consist of two northeast trending parallel oxidized veins which follow
along latite dikes emplaced within fault-fracture zones. The western vein was reported to be 3 feet wide. The eastern vein was reported to be 12 to 18 inches wide and mineralized the full length of a 400 foot tunnel. The mine consists of three unpatented claims.”