호주
GSQOpenData@dnrme.qld.gov.au - Grasstree 4 Chains To An Inch Mine Map Provisional 1972
URL: https://geoscience.data.qld.gov.au/dataset/mr006465 The GRASSTREE Mine map was published in 1972, charted in 1974 at 4 Chains to an Inch as part of the TOWN MAP series to administer permit and permit related spatial information. The map was maintained internally as a provisional office chart and is located within the Mackay (8755) 1:100 000 map area. The map product is available to all government agencies, industry and the public for reference. Title and Image reference number is GRASSTREE_4971. Cancelled 1984