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GSQOpenData@dnrme.qld.gov.au - 20 CH 2526 20 Chains To An Inch Mine Map Provisional 1960
URL: https://geoscience.data.qld.gov.au/dataset/mr005957 The 20 CH 2526 Mine map was published in 1960, charted in 1964 at 20 Chains to an Inch as part of the 20 CHAIN series to administer permit and permit related spatial information. The map was maintained internally as a provisional office chart and is located within the Ipswich (9442) 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 20 CH 2526_0084. Author:Survey Office, Department of Public Lands.