The Pavonis Mons Congress was held following the success of the Second Martian Revolution as a result of Mars's newly acquired independence. It resulted in the creation of a Martian government and the drafting of a constitution for Mars, for which the work done at the Dorsa Brevia Conference of the underground was an important starting base. The constitution was put to vote on February 27, 2128, local year M-52, and passed with 78%; 95% of the voting Martian population participated to the vote.

The following participated in the congress:

Independent towns:

• Acheron
• Nicosia
• Cairo
• Odessa
• Harmakhis Vallis
• Sabishii
• Christianopolis
• Bogdanov Vishniac
• Hiranyagarba
• Mauss Hyda
• Sheffield
• Senzeni Na
• Echus Overlook
• Dorsa Brevia
• Dao Vallis
• South Fossa
• Rumi
• New Vanuatu
• Prometheus
• Gramsci
• New Clarke
• Bradbury Point
• Sergei Korolyov
• DuMartheray Crater
• South Station
• Reull Vallis southern caravanserai
• Nuova Bologna
• Nirgal Vallis
• Montepulciano
• Mareotis
• Burroughs refugees organization
• Libya Station
• Tharsus Tholus
• Overhangs
• Margaritifer Plinth
• Great Escarpment caravanserai
• Da Vinci
• The Elysian League
• Hell's Gate

Political parties and organizations:

• Booneans
• Reds
• Bogdanovists
• Schnellingistas
• Marsfirst
• Free Mars
• The Ka
• Praxis
• Qahiran Mahjari League
• Green Mars
• UNTA
• Kakaze
• Editorial Board of The Journal of Areological Studies
• Space Elevator Authority
• Christian Democrats
• The Metanational Economic Activity Coordination Committee
• Bolognan Neomarxists
• Friends of the Earth
• Biotique
• Séparation de l'Atmosphère