Map reference meaning

Hello fellow gold-diggers was looking at some old maps and wasn't shore on exact meaning of references.

Could someone please explain and maybe suggestions on best place to search. I was thinking of panning the lead locations that cross into river. And detecting the reef locations.


Thanks
Tony

Sorry though I had included map with reference.

For a start get the newer version of this map GF25 Daylesford goldfields which has all the alluvial flats marked on it. Then check to see if the areas that you are looking at are still Crown land as the map that you are looking at is nearly 100 years old. Also check that the creeks are not protected which Wombat creek is which is on the map. The ground above the creeks is very steep and heavily over grown. Look for where the reefs have shed down the hills to the Alluvial flats that is still state forests and not private land. Check with parks Vic for status of land that you wish to detect on. Office in Daylesford near SES.
Hope this helps
cheers db
Remember to do the research and ask questions.

Ordovician = hard sandstone and slate (folded)
Newer Volcanic = basalt lava flows
Older and Newer Pliocene = we still use Pliocene as an age, but they really had no idea of the age when they wrote this. The rocks are fairly flat-lying gravel, sand and clay of young age (but some may be Palaeogene and Neogene age rather than Pliocene). Of ten "Older" refers to the earliest generation of these sediments (e.g. White Hills Gravel) which can now occur on hillsides and hilltops. both can also be buried beneath younger sediments as the older gold-bearing "leads" of the miners.
Post Pliocene = really young gravel, sand and clay (e.g. Oligocene, Holocene, sediments of present-day streams)
Good luck