Plan a day in the field.

Choose a starting point, material and limits. Pick a primary stop and compare alternatives, then download a field pack. Missouri is the first detailed pilot; nationwide listings remain incomplete.

Planning estimates—not driving times or reservations. We allow two hours per stop and estimate travel using 1.5 × straight-line distance at 35 mph. Roads, traffic, hours and appointments are not checked automatically. Budget filters cover documented base adult admission only, not fuel, overages, equipment or other fees. A forest district is a research area, not a ready-to-dig pin.

Checking reviewed visit reports…

1 candidate stops fit these initial filters.

Your field pack (0/3 stops)

Selected stops appear in selection order. Add a backup as a separate option or check the combined estimate before visiting both.

    Includes written briefs, coordinates, a simple location overview, recognition notes and gear lists. No email, photos or account needed. No offline road tiles or turn-by-turn directions. Your notes are not uploaded; keep the downloaded file private.

    Nearest matching candidate · search area

    Mark Twain National Forest — Potosi District

    35 straight-line miles away · 5.0 estimated hours with return travel and one visit

    Drusy quartz · Chert · Dolomite · Common invertebrate fossils

    Costs: No admission fee for general National Forest access Not included in a guaranteed budget.

    Before leaving: Casual surface collecting only; no commercial use, archaeological objects, vertebrate fossils or collecting in closed/special areas

    Regional reference point, not a verified trailhead or collecting pin.

    Read full site brief →Check actual road route ↗

    Missouri pilot, local clubs and operator leads →