SS Green Mountain State
Crane vessel · built 1965
In short
SS Green Mountain State (Crane vessel) has no AIS position on record with Seadar.
- Vessel type
- Crane vessel
- Flag
- —
- Year built
- 1965
- Gross tonnage
- —
- Size (length × beam)
- 203 m
- Registered owner
- —
Watch this ship
Get an email when SS Green Mountain State arrives or leaves port, changes destination, name, flag or owner, or is sanctioned, detained or named in an official release.
We email you a link and a code. That creates a free account, no password or card, and follows SS Green Mountain State.
Free account, no card: follow up to 5 ships and ports. Plus follows 50, Pro 500.
By continuing you accept the Terms and the Privacy policy.

Last reported position
No AIS position on record for this vessel. Identity and particulars are below.
A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)
Try the live demo, no sign-upIdentity & particulars
- Name
- SS Green Mountain State
- IMO numberWhat is an IMO number?
- 6421347
- MMSIWhat is an MMSI?
- —
- Call signWhat is a call sign?
- —
- Flag
- —
- Vessel type
- Crane vessel
- Gross tonnageGross tonnage vs deadweight
- —
- Length overall
- 202.9 m
- Beam
- —
- Year built
- 1965
A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.
Ownership & management
Each line shows where the fact comes from. Links backed by an identifier point to the company page.
- Operator
- Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
- Builder
- Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
About SS Green Mountain State
SS Green Mountain State (T-ACS-9) is a crane ship in ready reserve for the United States Navy. The ship was named for the state of Vermont, which is also known as the Green Mountain State.
Summary from Wikipedia, licensed CC BY-SA.
Frequently asked questions
- Where is SS Green Mountain State now?
- Seadar has no displayable AIS position for SS Green Mountain State in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.
- What kind of ship is SS Green Mountain State?
- SS Green Mountain State is a crane vessel, built in 1965 by Ingalls Shipbuilding. The vessel is 202.9 m long.
- What sanctions and inspection records does Seadar hold for SS Green Mountain State?
- Seadar has no matched sanctions record displayed for SS Green Mountain State from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for SS Green Mountain State. Missing records do not establish whether the ship has been detained.
Use this data
This page is also available as JSON, free, with the source and licence of every section. Sections whose sources do not permit redistribution are listed as withheld.
GET /api/v1/vessels/6421347Using this data in code?
Every account gets a personal API allowance: 2,500 credits a month free, 25,000 with Pro. Pro adds internal business use; API plans add building the data into your own products.