Collection consists of 82 plans of gravel pits in Ontario. The plans have been collected by Wayne Caston, and he was involved in consulting in many of the projects. The records in this finding aid consist of information taken from an Excel spreadsheet created by Caston with details on each of the plans. A printout of the spreadsheet is also present in the collection. Plans are listed in the order originally provided by the donor on the spreadsheet.

Contains one holograph letter from James Hoyes Panton to Drinkwater (C.P.R.) requesting a pass to travel free during the summer in order to do geological research, dated April 16, 1884.