David~Arkansas only has single base VRS located in the populated communities and you are limited by how far away you can survey...about 20-30 miles. T...

Pablo~I received this same message last week when trying to submit 7 hours of data to OPUS. I reported this to NGS and our State VRS RTN manager. Come...

FYI...here's a News Release from June 2011 from the “Coalition to Save Our GPS”...FOR IMMEDIATE RELEASE: June 9, 2011CONTACT: Prism Public AffairsDale...

I am saddened to hear the news of Roy's passing. I will miss our conversations about GPS, subsidence, geology,, and those dam stinking benchmarks!......