A casual snapshot of the Miskatonic expedition's campsite taken right before breakfast. Based on the rocky terrain and low hills in the background this photograph was probably shot the day the party entered the desert basin proper.
To recreate this as a prop photograph just click through to the full res version, download the JPG, and take it to your friendly neighborhood photo kiosk. It's a bit small for a full sized 4x6 print, but it will look fine in smaller formats. If at all possible avoid using kiosks that use branded photo paper (the kind with an annoying logo repeatedly splashed on it) so the final print looks at least reasonably period.