Field reports

Coming up: Platinum-Group Assay Standards Conference

Platinum-Group Assay Standards Conference takes place on 13 January 2027 at Shackleton Platinum Exchange Trading Hall, Luna. This conference is where Ferrovane speakers take the stage.

The Kerwan boundary dispute, and why claimstakes talk

Two crews, one rhodium vein and a boundary that moved forty metres overnight. The Claims Registrar explains how the Kerwan dispute was settled in three days instead of three years.

Coming up: Swarm Prospecting Beacons: Valhalla Field Trial

Swarm Prospecting Beacons: Valhalla Field Trial takes place on 1 December 2026 at Valhalla Station, Callisto, Callisto. This launch is hosted by Ferrovane Prospecting Guild.

Equipment spotlight: Gravwell Gradiometer Array

The Gravwell Gradiometer Array is a Gravity gradiometer array designed and built by the Ferrovane Prospecting Guild. It has been helping crews find iridium, platinum-group metals and rare earths since July 2185.

Save the date: Microgravity Anchoring Masterclass

Mark 4 December 2026 in your calendar. Microgravity Anchoring Masterclass, a meetup, meets at Rigging Bay, Guildhall, Occator, Ceres, and it is hosted by Ferrovane Prospecting Guild.

Thumping Tharsis: listening for dysprosium dykes

Carbonatite dykes on the Tharsis flank carry some of the richest dysprosium grades in the inner system. Finding them a kilometre down took a seismic mapper and a lot of patience.

Coming up: Rheasilvia Toolworks Expo

Rheasilvia Toolworks Expo takes place on 18 January 2027 at Rheasilvia Toolworks Assembly Hall, Vesta. This expo is hosted by Ferrovane Prospecting Guild.

Working the Loki margin without cooking the crew

Io sits deep in Jupiter's radiation belts, and the Loki Margin Scandium Crust is radiation-restricted. The Guild's safety officer explains the shift rules that keep crews healthy.

Throwing rock away is the cheapest thing we do

An engineer at the Rheasilvia Toolworks explains why the Sieve Ore-Sorting Rig earns more by rejecting rock than any refinery earns by processing it.

Why prospectors should attend Valkyrie Survey Pilots' Meetup

If you work claims, survey rocks or buy concentrate, Valkyrie Survey Pilots' Meetup on 28 November 2026 is worth the trip. This meetup at Pilots' Mess, Stickney Station, Phobos is hosted by Ferrovane Prospecting Guild.

Why prospectors should attend Working Safely on Io: Radiation Webinar

If you work claims, survey rocks or buy concentrate, Working Safely on Io: Radiation Webinar on 14 November 2026 is worth the trip. This webinar at Online, broadcast from the Loki Margin camp, Io is hosted by Ferrovane…

Notes for apprentices before your first season

Advice from the Apprentice Master for new prospectors heading into the field for the first time: what to pack, what to learn, and what mistakes to avoid.

Phobos LIBS Assay Atlas is now open to members

We are opening access to Phobos LIBS Assay Atlas, a survey dataset covering Phobos surface, 14,200 sample points. Terms: CC0-1.0.

Save the date: Leviathan Charter Season Briefing

Mark 21 November 2026 in your calendar. Leviathan Charter Season Briefing, a webinar, meets at Online, broadcast from the Guildhall, Ceres, and it is hosted by Ferrovane Prospecting Guild.

Field-ready: Corehound Deep Core Drill

A new Deep core drill rig has joined the Guild equipment roster. The Corehound Deep Core Drill has worked claims since March 2172, and it has earned its place on survey manifests from Vesta to Callisto.

Twenty-three years of tools: a letter from the Guildmaster

The Guildmaster looks back on twenty-three years since 31 prospectors founded the Guild on Ceres, the Halcyon partnership, and why the Guild builds its own tools.

Save the date: Belt and Beyond Mining Summit

Mark 25 December 2026 in your calendar. Belt and Beyond Mining Summit, a summit, meets at Olympus Ring Convention Deck, Olympus Ring, and it is where Ferrovane speakers take the stage.

What we know about ClaimGrid Boundary Mapper

ClaimGrid Boundary Mapper is a open tool at Guild claims registry, all registered claims. Its status today: MPL-2.0.

Jovian Volatiles Census is now open to members

We are opening access to Jovian Volatiles Census, a survey dataset covering Ice shells of Callisto, Ganymede and Europa. Terms: ODbL-1.0.

Coming up: Stickney Rim Rover Field Day

Stickney Rim Rover Field Day takes place on 16 November 2026 at Stickney Station, Phobos, Phobos. This meetup is hosted by Ferrovane Prospecting Guild.

Field release: Galileo Regio Rare Earths

Survey crews have finished their work on Galileo Regio Rare Earths, a deposit at Galileo Regio dark terrain, Ganymede, 10-240 m. The record is published under these terms: Auction lot 12.

Now in the kit list: the Thumper Seismic Mapper

The Rheasilvia Toolworks has released the Thumper Seismic Mapper to Guild crews. It is a Active seismic mapper that has been in service since November 2177, and field teams have been putting it through its paces ever…

Coming up: Hands-on LIBS Assay Workshop

Hands-on LIBS Assay Workshop takes place on 24 November 2026 at Assay Laboratory, Rheasilvia Toolworks, Vesta. This meetup is hosted by Ferrovane Prospecting Guild.

Loki Margin Scandium Crust is now open to members

We are opening access to Loki Margin Scandium Crust, a deposit covering Loki Patera margin, Io, 2-35 m sulfur-silicate crust. Terms: Registered claim FV-0703 (radiation-restricted).