It is possible to get good horizontal and vertical results with no GCPs as shown above using an RTK base. A drone platform with RTK capabilities, a lens that has been calibrated and a sensor that meets the specifications for aerial mapping are required. Experience in working with map projections, Grid to Ground relationships, are required to make the necessary adjustments for the final deliverables. For any surveying product, experience and due diligence is required to insure that the final deliverables meet surveying and mapping standards.
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