RegattaCentral

From I-25, exit on Harmony Rd; go East.  There will be a Wal Mart on the North side of the road and a Costco on the South side of the road.  Head East until you come to the Light for Main Street.  Go left on Main ( you are now traveling north).  You will take a right on Buss Rd.  You are now traveling East.  In approximately one mile, you will be at the entrance to the Timnath Reservoir.  It is a dirt road, and not well marked.  Take a left onto this road.  It will travel up towards a water tower (round white kind) and the road will travel down.  Parking for boat trailers will be on the left. 

http://www.bing.com/maps/default.aspx?encType=1&where1=Timnath%20Reservoir%2c%20Colorado&cp=40.5489654541016~-104.960227966309&qpvt=timnath+reservoir&FORM=MIRE