The frequency may be 'off' a bit. The 10 meter repeaters are supposed to be spaced every 10 Khz starting at 29.600. Then 29.610, 29.620, etc, that's for the output freqs. The corresponding inputs are at 29.500, 29.510, 29.520, etc. The typical 10 meter repeaters have been around for a while. Every once in a while a 'new' one will crop up, but usually doesn't stay around for long. Not sure how/if they do any 10 meter repeater coordinating. Considering 10 meter propagation, you are liable to hear people from just about anywhere on just about any of the repeaters. Depending on propagation, there just no limits like 'line of sight'...
- 'Doc