Yes, a single position is certainly not more accurate after conversion to NAD83. But isn't NAD83 a hair more self-consistent, so that propagating pos...

For any of the handheld recreation-grade GPS receivers I've played with (up through the Garmin 60), the final answer should be in WGS84. The differen...

With all the horror stories we hear about fire hydrant stability/replacements, it might turn out that neither checks well.

Frequent users will have more advice, but for starters:You can require that he get a reading on a known point, such as a National Geodetic Survey HARN...

There are counties in Iowa that won't allow a camera in the room with the documents. Unless that is a relatively recent state-wide rule, it is only th...

The more you practice, the luckier you get.

>be happy that something was already thereespecially if only one thing was there

Is it an option to have more sheets in the drawing? Put the boundary and easements with everything the land surveyor wants on a sheet. Then have a s...

It'll be at the intersection of two straight linesWhere would the original GLO surveyor have put it if required to and he followed the instructions of...

The intersection is expected to be somewhere in the general neighborhood of the midpoint, so I used the exact midpoint to get typical numbers, rather ...

No, the SPC midpoint is what you get by sighting between quarter corners and going half the distance. SPC preserves angles perfectly at the expense o...

>2 pole chains were mandated on the PLSS surveys.How common are 2-pole chains versus 4-pole chains? Sufficiently common to believe that the majori...

>known more about the significance of the MeridianI can't make my mind up on the significance. In one way a principal meridian seems very importan...

Do the textbook check with 3 points in a straight line and 3 measured distances.(AB+const) + (BC+const) = (AC+const)soconst = AC -(AB+BC)

For 1' 30" and that plus 5" (perfect 200 meter distance)you are off 4.8 mm sideways (let's assume west) and 0 shortFor 45 deg and that plus 5"you are ...

You're right that a distance-distance intersection at a shallow angle (near 0 or 180) is bad and intersecting closer to 90 is good.But I don't see how...