- - "DOC" - - Multi-Cache

Cache is in the San Tan Regional Park so you will need to pay the access fee of $6.00 per vehicle.
Or hike with me since I have the annual pass and do this cache and this cache

Your mission is to find all of Doc's first aid kits,
and at LZ Denali41 find the Cache and arrange for a remote extraction.

• February 1, 19 C 5
• September E, I 005
• Enlisted March, 2 H 0 J
• II Marine Division
• A ^rd Battalion
• B^th Marine Regiment
• In Country - August X5, Y00Z
• G = X + Y
• D = Z + Y
• F = (X + Y + Z) - X

When you have filled in the blanks correctly you may start your search for the 1^st medical stash. Where you will find the instructions for the location of the 2^nd first aid kit .. and more information that will need to be calculated in the field to find the other waypoints
When you find all of them you will know where LZ Denali41 is located.

Footnotes on Compasses:
When using a compass in the field, it is very important to be careful when taking the measurements and doing the conversion between field (magnetic) and map bearings (true).
An error of five degrees in reading accuracy will result in a position error of about 150 yards after one mile of travel.
East Declination:
The declination is East (10°49') thus Magnetic North field bearing is less than True North map bearing.
Which also says that True North (map bearing) is greater than Magnetic North field bearing.
You need to make the two worlds equivalent by adding or subtracting the declination.

Map Bearing to Magnetic Bearing:
If you are taking a bearing from one point on your map to another point on the map with respect to True North, then you are working with a map bearing.
Now you need to convert this information into a magnetic field bearing to the topographical features of the surrounding landscape.
So you need to subtract the declination from your map bearing to create the proper magnetic field bearing.
Map Bearing - Declination = Magnetic Bearing.

Magnetic Bearing to Map Bearing:
If you are taking a bearing from your current position to the topographical features of the surrounding landscape with your compass, then you are working with a magnetic field bearing.
Now you need to convert this information into a true bearing to plot your position on the map.
So you need to add the declination to your magnetic field bearing.
Magnetic Bearing + Declination = Map Bearing

Mils System
We are all familiar with compasses that are marked in cardinal points: North, East, South, West, and the intercardinal points: North East, North North East, East North East etc., and the compasses marked in 360 degrees where North is zero or 360 degrees, South 180 degrees etc., but there is another unit of measurement that has been in common use in military compasses since the mid 1960's.

The mils system has been around since the beginning of the twentieth century, but the American military formally adopted it in the 1960's and it is now widely used, in one form or another, by most armies worldwide. There are 6283.1853 mils in a circle, but the U.S. military standardized this to 6400 mils to simplify things, so that North is seen as 6400, South is 3200 and so on.

Many compasses are also calibrated in both mils and degrees and are known as dual-use compasses. Mils can appear confusing, but using them is exactly the same as using a compass calibrated in 360 degrees, you just think in different numbers. (6400/360)=17.78 which translates to 17.78 mils is equal to 1 deg.

To use mils with your GPS can be relatively simple. But there is one very important function to pay very close attention to. The function of heading can change your azimuth when using mils, or degrees if it set either True (map) or Magnetic (field). When using mils one should set their heading to True. Since our magnetic variation is 12° which could change your azimuth quite considerably. A magnetic azimuth of 6250 mils. (352°) will change to 0058 mils (3°) when set to True.

Resection is commonly confused with intersection, although the two orientation methods are actually opposites.
In intersection the user is using map bearings from a known position which is currently plotted, and relating its position to features which are mapped in order to determine the unknown location.
Conversely, resection is using field bearings from known and recognized terrain features then converting the bearings to back bearings to determine your position in the field. These bearings can be plotted on a map when they are changed to true bearings.

Geocaching RATING system!!