Importing Elevation data from an ASCII format

Hello,

  I have some data that was collected and is in the following
format:

  Latitude Longintude Elevation(ft.)

My goal is to import this data into grass in elivation map. The
final goal is to get a contour map.

I tried importing through s.in.ascii, and converting the data but
all I got was points (sites). Can somebody point me in the right
direction?

Kym M. Lenkus
Davidson Laboratory