Lillian Brook is a named tributary in the Keene network — one of dozens of small feeder streams that trace through the northeast High Peaks corridor before emptying into the East Branch of the Ausable. No formal access or developed trail follows the brook, and no fish species data on record suggests it's either too small or too intermittent to support a fishery. The name shows up on USGS quads and older forestry maps, which means it likely mattered to loggers or guides a century ago — but today it's off-grid water, the kind you cross on a bushwhack or notice from a ridgeline. Worth knowing the name exists if you're plotting routes through the Keene backcountry on paper.
Closest parking lots within range, ranked by walking distance. Accessibility flags come from Google verified-data; surface and capacity from OpenStreetMap. Confirm hours and seasonal closures before you go.
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What to do, where to stay, and what's reopening across the Park as the snow melts and the calendar fills.
A complete planning guide: difficulty by peak, common combo days, seasonal realities, and a sortable, filterable table of every summit.
Overnight, day, and trip camps in the Park — the camp belt, choosing the right fit, costs and financial aid, ACA accreditation, and the questions every parent should ask before they commit.