The Thunder used a fourth-quarter burst and clutch free-throw shooting to stay alive in the 3A bi-district tournament.
With the game tied after three quarters, Katie Hurst, Olivia Hood and Arielle Pinzone led a rally that saw Mountain View open a 13-point lead.
The teams combined to shoot 65 free throws in the loser-out game at North Thurston High in Lacey. The Thunder were 19 of 37.
Hurst finished with 13 points and eight rebounds, Eva Winsheimer added 12 and Hood scored 10.
Mountain View led 17-5 after the first quarter, but was held to 10 points over the next two quarters combined.