ScienceWorks · Phase 3 field validation

The Geology of Ashland: A Walk Through Deep Time

Field-walk worksheet — the one gate no eval can fake. Walk the route in airplane mode and record what’s true on the ground.

Stops
6
Distance
3.62 km
Time
67 min
Difficulty
Moderate
Citations
32
Build cost
≈$10 API
123456 200 m N

Before you start

Download the tour and put the phone in airplane mode — the whole point is to prove it runs with no signal. Start at the Plaza (Stop 1) and follow the dashed route up the Ashland Creek canyon.

Audio isn’t recorded yet (voice is stubbed), so you’re validating locations, orientation, directions, visible features, and safety — not narration. GPS radii are provisional; use the manual-tap fallback if a trigger misses.

Safety first

This is a mostly-outdoor walk from the Plaza up through Lithia Park, gaining elevation toward the upper park. Wear sturdy closed-toe shoes, bring water (especially in summer heat above 2,000 ft), and watch children and dogs near Ashland Creek, which runs cold and fast. Poison oak grows along the upper trails — stay on the path. Cell service is spotty in the upper canyon, so the tour is fully downloaded and works in airplane mode. Two currency notes as of 2026: the Plaza Lithia Fountain has been shut off pending a state water-system review, and the Butler-Perozzi Fountain is under reconstruction — both stops work regardless.

Walker: ____________Date: __________ Conditions: ____________Start: ______ Finish: ______Actual min: ______ Ran fully offline? Y / N

The six stops

1

The Lithia Fountain on the Plaza

42.19706, -122.71542 · trigger radius 25 m · then ~6 min walk to the next stop

Stand here: Stand at the multi-spouted stone drinking fountain on the Plaza traffic island at the north end, facing North Main Street. It may be switched off (see below) — you don't need it running to do this stop.

GPS trigger fired at the correct spot (fired early / on-time / late / never)Y / N
Orientation clear — knew exactly where to stand & lookY / N
Described feature exists & is visible (phantom-feature check — BLOCKING)Y / N
Directions to the next stop were correctY / N
No unflagged safety hazard (BLOCKING if a hazard was missed)Y / N

Watch for at this stop

  • Fountain has been OFF since 2023 — it likely will NOT be flowing. Confirm you can still stand at the stone basin and that the stop reads well without a taste.
  • Check the posted barium / “daily consumption not recommended” sign is still there.
  • Confirm the GPS fires at the Plaza fountain island, not out in the street.
2

Ashland Creek Footbridge: Reading the Streambed

42.19380, -122.71460 · trigger radius 20 m · then ~7 min walk to the next stop

Stand here: You've walked in from the Plaza and reached the first pedestrian bridge over Ashland Creek, near the lower duck pond. Stand at the rail where you can see the wetted channel and the rocky bank below.

GPS trigger fired at the correct spot (fired early / on-time / late / never)Y / N
Orientation clear — knew exactly where to stand & lookY / N
Described feature exists & is visible (phantom-feature check — BLOCKING)Y / N
Directions to the next stop were correctY / N
No unflagged safety hazard (BLOCKING if a hazard was missed)Y / N

Watch for at this stop

  • Confirm this is the FIRST bridge in from the Plaza and that it is a pedestrian bridge.
  • After rain or snowmelt, high/turbid water may bury the rounded-vs-angular cobble contrast — note if the streambed isn’t readable.
  • Distance from Stop 1 is ~350 m (copy corrected from an earlier “150 m”).
3

Creekside Bedrock: Reading Ashland's Granite

42.19000, -122.71690 · trigger radius 30 m · then ~15 min walk to the next stop

Stand here: Stand on the main path where it runs right alongside Ashland Creek in the lower park, facing the water. Look at the rounded gray boulders the creek tumbles over. Coarse gray granitic rock is visible all along this stretch; the exact boulder you read may differ.

GPS trigger fired at the correct spot (fired early / on-time / late / never)Y / N
Orientation clear — knew exactly where to stand & lookY / N
Described feature exists & is visible (phantom-feature check — BLOCKING)Y / N
Directions to the next stop were correctY / N
No unflagged safety hazard (BLOCKING if a hazard was missed)Y / N

Watch for at this stop

  • The exact boulder varies within the 30 m radius — confirm pale, salt-and-pepper granitic boulders are actually present at this spot.
  • In-place cliff rock here may be older Klamath “country rock,” not the pluton — that’s expected and the script hedges it.
4

Valley Overlook — The Seam Between Two Mountain Worlds

42.18142, -122.71705 · trigger radius 60 m · then ~4 min walk to the next stop

Stand here: You're at the upper end of Lithia Park, on the grassy edge of the old Granite Street reservoir, where the developed park gives way to canyon. Face north, downstream, toward where the canyon opens out below town.

GPS trigger fired at the correct spot (fired early / on-time / late / never)Y / N
Orientation clear — knew exactly where to stand & lookY / N
Described feature exists & is visible (phantom-feature check — BLOCKING)Y / N
Directions to the next stop were correctY / N
No unflagged safety hazard (BLOCKING if a hazard was missed)Y / N

Watch for at this stop

  • The fullest valley view may be a few steps DOWN-canyon (north) of the reservoir — mark the best vantage point.
  • Reservoir bank is unfenced, no lifeguard. Access is up gravel Granite St.
5

A Ridgeline Assembled from Wanderers

42.17930, -122.71720 · trigger radius 60 m · then ~25 min walk to the next stop

Stand here: You are at the upper edge of Lithia Park, just above the old swim reservoir where the pavement gives way to dirt trail. Turn and face uphill, south and west, toward the forested Siskiyou ridgeline rising above the town.

GPS trigger fired at the correct spot (fired early / on-time / late / never)Y / N
Orientation clear — knew exactly where to stand & lookY / N
Described feature exists & is visible (phantom-feature check — BLOCKING)Y / N
Directions to the next stop were correctY / N
No unflagged safety hazard (BLOCKING if a hazard was missed)Y / N

Watch for at this stop

  • Trailhead coordinate is approximate (±tens of m) — confirm the GPS fires near the pavement-to-dirt transition above the reservoir.
  • Confirm crumpled / sheared rock is actually visible along the trail edge. Watch for poison oak.
6

Butler-Perozzi Fountain: Stone People Carried Here

42.19360, -122.71860 · trigger radius 25 m · final stop

Stand here: Stand on the fountain terrace off Winburn Way, near the sycamore grove across from the Butler Memorial Bandshell. Note: as of 2026 the century-old original has been dismantled for a full replica, so you may be looking at a construction site or a brand-new fountain rather than the aged Italian marble.

GPS trigger fired at the correct spot (fired early / on-time / late / never)Y / N
Orientation clear — knew exactly where to stand & lookY / N
Described feature exists & is visible (phantom-feature check — BLOCKING)Y / N
Directions to the next stop were correctY / N
No unflagged safety hazard (BLOCKING if a hazard was missed)Y / N

Watch for at this stop

  • LIKELY AN ACTIVE CONSTRUCTION SITE in 2026 (fountain dismantled for a replica). Confirm whether it is fenced/accessible and whether a replica is installed.
  • This is a long ~1.9 km downhill walk from Stop 5 — note how the backtrack feels; it’s the route’s weakest leg.

Field verdict

Promote to field_validated only if: 0 safety defects · 0 phantom features · ≤ 2 minor, single-stage-correctable defects. Otherwise fix the guidelines/agents (not just this tour) and re-walk.

Auto-generated tour · passed 11/11 deterministic checks and a 2-judge review · status auto_passed (not yet field-validated — do not list). Route this worksheet’s defects to: Researcher / Route Planner / Scriptwriter / Fact-Checker / Audio / Packager.