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Goldrush #4 - Cohens Reef at Walhalla Multi-Cache

Hidden : 5/15/2005
Difficulty:
3.5 out of 5
Terrain:
2 out of 5

Size: Size:   small (small)

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Geocache Description:

Interesting little mathematical multi based in Walhalla, Victoria. Requires a little exploration around town to gather the information required to complete the cache.

This cache is hidden somewhere in the town of Walhalla, Victoria.

The posted coordinates are Bogus!

Walhalla is just the most gorgeous place and warrants some good investigation and exploration. There are some great trips and tours that you can take from and around Walhalla and if you really feel up to it, you can take the 680km walk from here to Canberra if you like. It'll only take you about 6 weeks to complete!

Failing that though, all the questions below can be answered by finding the appropriate information points within the town. They are all readily accessible and the town really isn't too big that you can't knock this cache over in an hour or two on foot.

Find the sign indicating the position of the Long Tunnel Mine.

  • For how many years (A) was this mine open?
  • How many oz of gold (B) was produced?
  • Approximately how many tons of ore (C) were crushed here?
Note:  there are at least two signs in the town indicating the "Long Tunnel Mine" location. The one you want clearly has all the required information on it. (Many thanks to Dave of dak's Emu Mob for identifying the second sign!)

Find the sign where the old Bank of Victoria stood.

  • During the banks operation, how many tons (D) of gold were stored here?
  • In what year (E) was the fire that destroyed the bank building?
At the old Bandstand, find...
  • ...the year (F) Walhalla was founded.
  • ...the year (G) the town collapsed.
Find Caroline Spetts' Cottage.
  • In what year (H) did Caroline Spetts die?
Go for a cup of coffee and calculate...
  • Z=((((D-69)*(H-F))-4)/10
  • Y=((C/3)+(A*Z))/1000
  • W=30+(G-E)
  • X=W+(((B+31)/100)+52)/19000
Find the sign at
  • S 37 X
  • E 146 Y
Identify...
  • How deep (P) in metres was the main shaft?
  • For how many years (Q) was this part of the cohen's line of reef worked by the Long Tunnel Extended Mine company?
  • How many tonnes of gold (R) would have been extracted from this ore?
You will find the cache at

S 37 W+((P-579)/1000)
E 146 (R*2)-(((Q*10)-11)/1000)

New Items to search for as of 1/10/16

Find the Walhalla Masonic Lodge Sign.

  • What Is the Victorian Lodge Number(A)
  • What year(B) was the first Official Meeting

Find the sign where the Criterion Hotel stood.

  • What Year (C) was the License Revoked

Find the Walhalla Cricket Ground Sign.

  • What year(D) did the Melbourne Cricket Club Visit

Find the site of the Long Tunnel Mine Yard.

  • How many Years(E)
  • How many metres(F) underground were reached

Now for the Maths:

  • S37 (66*A+9*B+18*C+462)
  • E146 (12*D-14*E+4*F+2)

After (or before) you have found the cache, why not take the time to go on the tour?

Please also say hi to Garry and let him know that you are a geocacher!

Tours on weekends, School and Public Holidays are at midday, 2pm and 3pm daily. Monday-Friday at 1:30pm and take 45 mins to complete.

My grateful thanks to Garry for letting me put the cache on the site.

Additional Hints (Decrypt)

ORUVAQ LRYYBJ, 400ZY FVFGRZN

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)