John G. Mine

• Wind directionENE (75°) → ESE (105°)
• Ideal speed6–15 mph
• Upper limits≤ 18 mph base · gusts ≤ 22

Site confirmed in paraglidingEarth (ID 21289, "John G. Mine," 46.6893/-112.08) and as a Windfinder spot near Helena, MT — but no club/USHPA guide, site description, or pilot reports with explicit wind numbers were found, so all speeds/arcs are inferred. paraglidingEarth lists TWO distinct takeoff orientations: East (primary ideal here, ~75-105°) and Northwest (~293-337°), indicating a mine-bench/ridge that can be flown in either of two separate wind directions rather than one continuous arc — treat NW as the secondary/alternate launch, not a marginal edge of E. Sandwiched in the high terrain along the Continental Divide NW of Helena (~4700 ft MSL launch); expect strong thermic/XC potential but classic mountain hazards: afternoon overdevelopment, valley/anabatic flow, lee-side rotor whenever the gradient backs to the opposite (W/SW or N/NE) side, and venturi acceleration through the divide. Best flown morning or early afternoon before thermals get rough. Speeds given are generic PG mountain-launch defaults (ideal ~6-15 mph, max base ~18, max gust ~22); verify on-site and lower the ceiling for HG vs PG. Likely intermediate-and-up XC site; access/landowner permission (mine property) unknown — confirm locally before flying.