The orthophotography required additional paneled geodetic control, on the 20 part per million level, to be established on 21 additional points, some of which were PLSS corners or reference points for a PLSS corner. One other point worth noting is the establishment of geodetic control point on the roof of the Clark County Courthouse, to be used as a base station for GPS control for GIS applications. A GIS grade GPS receiver, namely a Trimble ProXR system, was used to occupy 3 densified HARN points as base stations to obtain rover coordinates on the roof point. Carrier phase data collection, post processed using Trimble Pathfinder Office software. The user is responsible for the appropriate use of this data.
Fees assessed are for cost of time and materials only.
Call, write, or email. Data should be sent out within 10 business days of request.