[bgill]

I know the area. The in-laws' house (nice middle class neighborhood) is wooded with lots of oak and elm, there are lots of caves, rivers, hills, a large pond and a huge quarry. Natural Bridge Caverns is there and many small unnamed holes in the ground. Lots of places to bury a body. Mexico is right down the road, too. http://kxan.com/2014/01/26/search-continues-for-missing-woman-in-comal-co/ Authorities from more than 15 state agencies searched for Bearden on Saturday, using canines, horses, ATVs, and aerial support to cover more that 23 square miles... A man trimming trees across the street reportedly saw Bearden leave the home January 17. Garden Ridge police say they interviewed that man and verified the time she left the home by herself, and that everything appeared fine... Leanne is a marathon runner, and has run in the Boston marathon, and many races in Austin.

[Uncle Chip]

It sounds like it was a substantial search:

Authorities from more than 15 state agencies searched for Bearden on Saturday, using canines, horses, ATVs, and aerial support to cover more that 23 square miles. KXAN was included in the search, exclusively invited by TEXSAR to document the search on Saturday.

http://kxan.com/2014/01/26/search-continues-for-missing-woman-in-comal-co/