Myst Series (Part 4)

7 hours - Myst V: End of Ages
1 hours - Uru: Ages Beyond Myst (Part 1)

Did Myst V in one sitting, despite my lack of observations in some Ages.
If New Mexico is where the Cleft is, one questions where D'ni is.
Myst V begins in that crater/mountain where the Cleft is, in my opinion.