Pyramides Calcaires is a twin summits (2726m the N summit and 2689m the S one) placed at the bottom of the Val Veni ... just above the Rifugio Elisabetta and very near the Col de la Seigne.
Their profile is very smart and captures the eyes of the ones who walk up along the valley
Their colour points out that they are really an intruder in the surrounding kingdom of granite.
The rock is a (almost everywhere) good limestone covered by grass in its less steep parts
I've been climbing here once (in the past century), in a lazy afternoon spent on the meadows near the Col de la Seigne and the Rifugio Elisabetta and I can remember an unroped climb along an easy ridge,
trying to find, on its sides, some fine slabs to climb on
... so it was a climb, walk, descend, cross, climb etc.
From Milan-Turin along the highway of Mont Blanc up to Courmayeur (toll)exit before the tunnel !
From Courmayeur follow signs for Notre Dame de la Guerison - Val Veny.
The narrow road, after some hairpins, enters the valley on its right (orographic) side (S), just in front of the Brenva glacier (wonderful views !) then goes on up to the Combal plain where you must park your car. Here you can make a little excursion to give a look to the (very fine) Combal lake ...
With an absolutely comfortable walk along a dirt road you arrive near the Rifugio Elisabetta Soldini (2195m) and at the feet of the S summit (here some military posts digged in the rock - worth to be visited - carry a lamp)
An easy (1°-2° UIAA) ridge (E spur) starts just few meters behind the Rifugio Elisabetta and goes on, passing a grassy shoulder, to the S summit.
To the same summit a not difficult (3° UIAA) route follows the S ridge (in the left skiline in the photo beside) that can be got along the path to Col de la Seigne
The N summit is easy to be climbed from the notch between the two summits
You can/could "open" here your personal route along the limestone slopes coming down from the ridges
On their sides a lot of sport climbing (1 or 2 pitches) routes (see the book under)