Flight Crew Private
Flight Crew Last 90 Days 30; Flight Crew Total 900; Flight Crew Type 300
Confusion; Situational Awareness
Ground Event / Encounter Other / Unknown; Ground Incursion Taxiway
General None Reported / Taken
Airport; Human Factors
[I was] approaching from the west; straight in on Runway 7. This is a remote airport mostly used by ag sprayers. Runway numbers are scuffed but visible; no center line. I land. At far end of runway [is] a large chain link fence gate; I taxi through it and discover that I have landed on a taxiway; the 'old' runway. The new current runway is ahead of me over a slight rise; not visible from the west when on approach to what first appears as 'the' runway. The nearest ATIS reported calm winds; which is why I did not first circle the airport; this was my mistake. Most confusing to me is that the 'old' runway numbers were still visible on the pavement (not painted over black or completely scrapped off). Yellow painted arrow(s) or even a yellow centerline would have been helpful.
A small single-engine pilot landed on the 'old' Runway 7/25 at 35S. The old 7/25 is now used as a taxiway for the new runway; also designated as 7/25. The new runway is located to the East and is displaced by a few hundred feet south. Runway numbers remain visible on the old runway was cited as a contributing factor.