Textual documents donated by Eric L. Johnson relating to mining in the Sea to Sky area and trail maintenance.

Notes on former mine sites and operations between Whistler and Squamish, penned by Eric L. Johnson in October 2017.

Map of the Northair Mine area on Mt. Sproatt from 1973, including location of zones, drill holes, and underground work.

Document sharing the history of the Northair's Brandywine property, titled "Northair Mines: Grass roots to senior financing", written by M. P. Dickson and D. A. McLeod in 1975.

Hand-drawn map of the Northair Mine area on Mt. Sproatt (1 : 5000 scale) from 1979 created by Eric L. Johnson.

Hand-drawn map of the Northair Mine area on Mt. Sproatt (1 : 10 000 scale), created by Eric L. Johnson in 1979.

Newspaper and magazine clippings regarding Northair Mines Ltd., collected by Eric L. Johnson between 1977 and 1987.

Maps of the Sea to Sky area and the Northair Mines area on Mt. Sproatt, primarily from the 1970s.

Map of the Geology of Warman Vein, 3500 and 3700 levels, created on February 26, 1974. The Warman Vein runs through the former site of Northair Mines.

Article titled "First New Mine in Five Years" from June 8, 1977 regarding the opening of the new Northair Mine on Mt. Sproatt, North of Squamish.