PRETORIA GeoArt Series
Welcome to PRETORIA!
The Pretoria geocaching community is very proud to present PRETORIA, the largest GeoArt series to date in South Africa.
Aside from its rich cultural history, Pretoria is also home to an extremely active geocaching community. The Pretoria geocachers are a very social bunch and meet at least once every month to share stories, swap experiences and trackables and enjoy each other's company. During one of our get-togethers, the idea of putting our beautiful city well and truly on the geocaching map was born. It started off as a small idea but we soon realised that it would be a huge undertaking. When the call for interested parties went out, the local community responded true to spirited Pretoria form and soon all 85 caches were allocated to 21 different teams. The PRETORIA GeoArt community project commenced in January 2014 and was completed six months later in June 2014.
We hope you will enjoy exploring our beautiful city of PRETORIA.
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For English, see further on.
- Bepaal watter twee Suid-Afrikaanse caches die verste van mekaar lê.
- Indien die noordoostelike cache op ‘n hoogte van 199m is en die suidwestelike cache op ‘n hoogte van 3m, lê die sentroied van die twee caches by S28 31.335 E25 13.044, omtrent 3km buite Boshof in die Vrystaat.
- Die vraag is: Hoe diep onder die oppervlak van die aarde is die sentroïed? (Aanvaar die grondoppervlak by die sentroied lê by 1247m) (Gebruik WGS84)
- Rond die antwoord af tot die naaste 100m: AB.C km
- Die finale posisie van die cache is dan by: S25 4(A-1).CAB E28 1(B+1).(B-2)(A-B)(B+C)
- Determine which two South African caches are the farthest from each other.
- If the northeasterly cache lies at a height of 199m, and the southwesterly cache is at an altitude of 3m, the centroid of the two caches is at S28 31.335 E25 13.044, about 3km outsid Boshof in the Free State.
- Question: How deep below the surface of the earth is this centroid? (Assume the surface at the centroid is at an altitude of 1247m.) (Use WGS84)
- Round the answer off to the nearest 100m: AB.C km
- The final position of the cache is at: S25 4(A-1).CAB E28 1(B+1).(B-2)(A-B)(B+C)
