Lebanon Township, Hunterdon County, NJ
260 acres


Accessible via County Rout 513 from Clinton. After passing the entrance to Vorhees State Park, which is just north of High Bridge, look for a right turn in 1.6 miles. Turn right, cross the single-lane bridge, and immediately turn right again at the crossroads. After passing through a residential area, the paved road will turn to dirt for two miles before it becomes paved again. Park in one of the spaces alongside the road as soon as you enter the dirt road section.
about 1.6 miles north of Voorhees State Park (which is just across the street from Voorhees High School)

starts at 2.1 miles
ends 3.9 miles
so it is only 1.8 miles long
at 4.4 miles you reach the intersection with Cokesbury Road; turn right and it will take you back to Fairview Avenue which is Route 513
The river will be on your right.
The road is very narrow and has many potholes, requiring careful steering.

(For maps see:


1948  -- the tract was purchased. Over one-half of the tract was obtained through the State Green Acres Program; the remainder of the area was purchased with money from hunting and fishing license fees.

There is an inscribed stone dedication to Ken Lockwood, angler and conservationist, inset a short distance into the woods along the east side of the river path. 


woodland and fields.


Audubon guide:

The South Branch of the Raritan River roars through the Ken Lockwood Gorge in the New Jersey highlands. Lots of fishermen especially in the spring. It is truly a wild and scenic river through the few miles of the gorge, particularly in the spring.  There are big rapids, huge boulders in the water, calm pools, and tall hemlocks dominating the banks.

The hike in this gorge is simply a walk along the eastern bank of the river on a dirt road used by cars. If you happen to be here on a spring weekend, expect a crowd. Boulders are strewn throughout the river, with rapids, small waterfalls, and pools interspersed along the way.

The easiest way to follow the river is by walking along the area's access road, which runs parallel to the water. The access road is unpaved and is marked by many potholes, requiring some careful steering.

5/28/05.    Rosemary Cooney, Sarah-David Rosenbaum, Ceferino Santana, dog Sonar and I parked our car by the pedestrian bridge over the river.  I would not suggest driving a regular car into this area.  We made it through the entire way but we had many scrapes on the underside.  It's not worth it.  You can walk into the area easily enough anyway.  The Columbia Trail crosses over this bridge.  We could have walked up the cliff by the side of the bridge onto the Columbia Trail, but  I was the only one interested in doing so  -- so we didn't.  We walked south along the path.  This is a great place for wildflowers.  Dr. Patrick L. Cooney. 

Dr. Patrick L. Cooney, Sarah-David Rosenbaum

* and  10/1/96  = plant found in bloom on date(s) of field trip(s), 5/28/2005 and 10/01/96

Acer platanoides (Norway maple)
Acer rubrum (red maple)
Acer saccharum (sugar maple)
Betula alleghaniensis (yellow birch)
Betula lenta (black birch)
Carpinus caroliniana (musclewood)
Carya cordiformis (bitternut hickory)
Carya tomentosa (mockernut hickory)
Castanea dentata (American chestnut)
Crataegus sp. (hawthorn)
Fagus grandifolia (American beech)
Fraxinus pensylvanica (green ash)
Liriodendron tulipifera (tulip tree)
Nyssa sylvatica (tupelo)
Ostrya virginiana (American hop hornbeam)
Platanus occidentalis (American sycamore)
Quercus alba (white oak)
Quercus prinus (chestnut oak)
Quercus rubra (red oak)
Robinia pseudoacacia (black locust)
Salix sp. (willow)
Sassafras albidum (sassafras)
Tilia americana (American basswood)
Tsuga canadensis (eastern hemlock)
Ulmus rubra (slippery elm)

Berberis thunbergii (Japanese barberry)
Chimaphila maculata (striped wintergreen)
Cornus amomum (swamp dogwood)
Elaeagnus umbellata (autumn olive) *
Hamamelis virginiana (witch hazel)
Kalmia latifolia (mountain laurel)
Ligustrum sp. (privet)
Lindera benzoin (spicebush)
Lonicera morrowii (Morrow’s honeysuckle)
Mitchella repens (partridgeberry)
Rhododendron periclymenoides (pink azalea) *
Ribes sativum (garden currant)
Rosa multiflora (multiflora rose)
Rubus odoratum (purple-flowering raspberry)
Rubus phoenicolasius (wineberry)
Rubus sp. (blackberry) *
Sambucus canadensis (common elderberry)
Staphylea trifolius (bladdernut)
Viburnum acerifolium (maple-leaf viburnum)
Viburnum prunifolium (blackhaw viburnum)

Calystegia sepium (hedge bindweed)
Celastrus orbiculatus (Asiatic bittersweet)
Dioscorea villosa (wild yamroot)
Echinocystis lobata (wild cucumber)
Lonicera japonica (Japanese honeysuckle)
Parthenocissus quinquefolia (Virginia creeper)
Sicyos angulatus (one-seeded cucumber)
Smilax rotundifolia (round-leaved greenbrier)
Toxicodendron radicans (poison ivy)
Vitis labrusca (fox grape)

Actaea alba (doll's eyes) 10/1/96 in fruit
Agrimonia sp. (woodland ? agrimony)
Alliaria petiolata (garlic mustard) *
Amphicarpaea bracteata (hog peanut)
Anemone quinquefolia (wood anemone)
Anthriscus sylvestris (wild chervil) *
Arabis laevigata (smooth rockcress)
Aralia nudicaulis (wild sarsaparilla)
Aralia racemosa (spikenard )
Arctium sp. (burdock)
Arisaema triphyllum (Jack in the pulpit)
Artemisia vulgaris (common mugwort)
Asarum canadense (wild ginger)
Barbarea vulgaris (common wintercress) *
Bidens cernua (nodding bur marigold) 10/1/96
Boehmeria cylindrica (false nettle)
Cardamine impatiens (narrow-leaved bittercress ) *
Cardamine rhomboidea (springcress) *
Cardamine pensylvanica (Pennsylvania bittercress) *
Cerastium vulgatum (mouse-ear chickweed) *
Chelone alba (white turtlehead)
Cichorium intybus (chicory) 10/1/96
Claytonia virginica (spring beauty) *
Collinsonia canadensis (horsebalm)
Coronilla varia (crown vetch)
Desmodium glutinosum (pointed-leaved tick trefoil)
Epifagus virginiana (beech drops)
Erigeron annuus (daisy fleabane) *
Erythronium americanum (trout lily)
Eupatorium fistulosum (trumpetweed)
Eupatorium purpureum (sweet-scented boneset)
Eupatorium rugosum (white snakeroot) 10/1/96
Fragaria virginiana (wild strawberry) *
Galium aparine (cleavers) *
Galium sp. (bedstraw)
Geranium maculatum (wild geranium) *
Hemerocallis fulva (tawny day lily)
Hepatica americana (round-lobed hepatica)
Hesperis matronalis (dame’s rocket) *
Hosta sp. (hosta)
Hydrophyllum virginiana (water-leaf) *
Impatiens capensis (orange jewelweed) 10/1/96
Iris sp. (blue or yellow flag)
Laportea canadensis (wood nettle)
Lespedeza cuneata (Japanese bush clover)
Lysimachia ciliata (fringed loosestrife)
Lysimachia nummularia (moneywort)
Maianthemum canadense (Canada mayflower) *
Medeola virginiana  (Indian cucumberroot) *
Mitella diphylla (two-leaved mitrewort) *
Orchis spectabilis (showy orchid) *
Orobanche uniflora (one-flowered cancerroot) *
Osmorhiza claytonii (sweet cicely) *
Pedicularis canadensis (wood betony)
Pilea pumila (clearweed)
Plantago major (common plantain)
Podophyllum peltatum (mayapple) *
Polygonatum pubescens (hairy true Solomon’s seal) *
Polygonum cespitosum (cespitose knotweed) 10/1/96
Polygonum sagittatum (arrow-leaved tearthumb)
Polygonum sp. (knotweed) 10/1/96
Polygonum virginianum (jumpseed)
Potentilla canadensis (dwarf cinquefoil) *
Potentilla simplex (common cinquefoil) *
Prenanthes altissima (tall white lettuce)
Prenanthes trifoliolata (tall rattlesnake root?)
Prunella vulgaris (self-heal)
Pyrola elliptica (shinleaf)
Ranunculus abortivus (kidney-leaved crowfoot)
Ranunculus bulbosus (bulbous buttercup) *
Ranunculus hispidus var. caricetorium (swamp buttercup) *
Ranunculus recurvatus (hooked crowfoot) *
Rumex sp. (dock)
Sanguinaria canadensis (bloodroot)
Sanicula gregaria (clustered sanicle) *
Saxifraga virginiensis (early saxifrage)
Sedum ternatum (wild stonecrop) *
Sedum acre (mossy stonecrop)  *
Smilacina racemosa (false Solomon’s seal) *
Smilax herbacea (carrion flower)
Solidago caesia (blue stem goldenrod) 10/1/96
Solidago flexicaulis (zig-zag goldenrod)
Stellaria media (common chickweed) *
Symplocarpus foetidus (skunk cabbage)
Taraxacum officinale (common dandelion) *
Thalictrum dioicum (early meadowrue)
Trifolium pratense (red clover)
Tussilago farfara (coltsfoot)
Veronica serpyllifolia (common speedwell)
Viola blanda (sweet white violet) *
Viola cucullata (marsh blue violet) *
Viola sororia (common blue violet) *
Zizia aurea (golden Alexanders) *

Carex crinita (fringed sedge)
Carex spp. (sedges)

Microstegium vimineum (Japanese stilt grass)

Ferns and Fern Allies:
Equisetum arvense (field horsetail)
Lycopodium lucidulum (shining club moss)
Athyrium filix-femina (lady fern)
Botrychium sp. (rattlesnake fern)
Cystopteris tenuis var. macloskeyi (fragile fern)
Dryopteris carthusiana (toothed woodfern)
Dryopteris marginalis (marginal woodfern)
Onoclea sensibilis (sensitive fern)
Osmunda claytoniana (interrupted fern)
Pellaea atropurpurea (purple cliff brake)
Polypodium sp. (rockcap fern)
Polystichum acrostichoides (Christmas fern)
Thelypteris noveboracensis (New York fern)