Welcome to Riverside Memorial Park Aberdeen, South Dakota. This cemetery is open year round. The cache is winter friendly however the grave stone may be snow covered.
This cache is a two stage multi-cache.
Stage 1 is a virtual stage.
You will need to use the information provided at the posted coordinates to answer the questions below and figure out the coordinates for the second stage.
Stage two is the final location.
Please use the following formula to obtain the coordinates for the second and final stage:
N45 26.ABC
W098 30.DEF
Stage 1 (posted coordinates): Charles and Jeannette Herried's gravesite. Click here for a picture of an historical marker about Charles N. Herreid
A. What is Charles' birth year? Use the third digit.
B. What is Charles' death year? Use last digit.
C. What is Jeannette's birth year? Use second digit and subtract 2.
D.What is Jeannette's birth year? Use third digit.
E. What is Jeannette's death year? Use third digit and add 1.
F. What is Charles' birth year? Use last digit and subtract 1.