Coming into the clash, the title chasers will have been confident of claiming another away victory, especially off the back of a 80-34 triumph on the road at Cobram last time out.
Continuing from where they left off, the Purples established control early at Finley Recreation Reserve, leading 16-10 at quarter-time before producing a decisive second term to extend their perfect start to the season.
Nathalia outscored Finley 17-6 in the quarter to open up a commanding 33-16 half-time advantage, with goal shooter Georgia Walpole and goal attack Emmalea Wishart proving virtually unstoppable under the post.
The pair shot at a flawless 100 per cent accuracy rate for the afternoon, combining for all 67 goals.
Any hopes of a Finley comeback were effectively extinguished in the third quarter as Nathalia again dominated proceedings, extending the margin to 51-22 by the final break.
The visitors then finished the job with another 16-goal final term to complete the 42-goal victory.
Walpole left Finley having chalked up 39 goals, while Wishart added 28 in a clinical attacking display that exemplified undefeated Nathalia’s domination of the division.
The Cats did emerge with credit from the defeat, with Paige Gray the pick of the bunch on the day, as she tallied 16 goals with perfect accuracy.
Next up, the Murray league pacesetters will face Rumbalara at home in round 13 on June 27, while their defeated opponents have the opportunity to put things right away at Echuca United that same day.
Elsewhere in round 12, Echuca United had a convincing 52-21 victory over Congupna, while Deniliquin strengthened its finals push with a 45-34 win over Cobram.
Rumbalara edged Numurkah 48-41 in a valuable result that keeps it firmly in the finals conversation, while Mulwala maintained second spot with a hard-fought 57-51 victory over Tongala.
With Nathalia now 11 wins from as many outings and boasting a percentage of more than 164, the indomitable side continues to set the benchmark as the race towards finals intensifies.