Our experience and methods of field survey data collection has changed over the years as technology has increased our productivity and accuracy. Our survey crews use RTK GPS rovers for electronic topographic mapping. Our crews can also perform static/relative positioning GPS observations using existing horizontal and vertical control, including HARN, CORS, and other fiducial stations for high accuracy, blue-booking geodetic networks. Also, we regularly perform RTK GPS surveys for secondary type control and for topographic surveys.
Additionally, we can perform all aerial mapping requirements and perform our own in-house aerial triangulation and stereo compilation, and we can combine aerial mapping methods with our field run methods to produce accurate and cost-effective topographic mapping.