Stand on every launch before you drive to it.

Three fork rails drawn at one shared scale, one designated mile to a fixed share of the width. The North Fork's 58.3 designated miles end where it joins the Middle Fork at Blankenship. The Middle Fork's 100.6 designated miles end at the South Fork confluence; past that terminus the main stem Flathead is undesignated and drawn not to scale, with Hungry Horse HWY 2 Bridge and House of Mystery on it. The South Fork's 60 designated miles end at the head of Hungry Horse Reservoir, and the designated water below RM 40.8 has no access site. Reservoir Road Below Dam sits below the dam on undesignated tailwater, also not to scale. Wurtz sits on designated North Fork water between Canadian Border and Ford; its river mile has not been measured, so its position is approximate.

Four launches on this guide carry no Wild and Scenic river mile, and they are not all the same problem. Hungry Horse HWY 2 Bridge and House of Mystery sit on the main stem below the confluence, water Congress never designated. Reservoir Road Below Dam sits on undesignated tailwater below Hungry Horse Dam, where releases set the flow. Wurtz sits on designated North Fork water whose river mile has not been measured yet, so it holds an approximate place on the rail until it is.