To evaluate the expression \(-26 - (6)^2\), we first need to calculate \((6)^2\):
\[ (6)^2 = 36 \]
Now we can substitute this back into the expression:
\[ -26 - 36 \]
Now, we perform the subtraction:
\[ -26 - 36 = -62 \]
So, the value of the expression is \(-62\).