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Ouachita Mountains/West Gulf Coastal Plain boundary. Central Hills, Ridges, and Valleys/Tertiary Uplands Ecoregion boundary. USGS Haskell 7.5' Quad. 2 miles S of Benton, in ditches along both sides of abandoned truck weigh station along NW side of I-30 W.

West Gulf Coastal Plain. Tertiary Uplands Ecoregion. USGS Traskwood 7.5' Quad. 80 yds W of Oklahoma End Road, 1.2 miles N of the Oilwell Rd and House Rd intersection by Traskwood.

Ozark Highlands. Dissected Springfield Plateau-Elk River Hills Ecoregion. USGS Gallatin 7.5' Quad. Vicinity of Pedro. About 1 mile east from intersection of Hwy 412 and Old Hwy 68. Just south of the Illinois River.

Boston Mountains. Lower Boston Mountains Ecoregion. USGS Elkins 7.5' Quad. Southern end of Lake Sequoyah in the Middle Fork River floodplain. Approximately 275 meters northwest of bridge on East Huntsville Road.

Ozark Highlands. Dissected Springfield Plateau-Elk River Hills Ecoregion. USGS Gallatin 7.5' Quad. Ozark-St. Francis National Forest, Wedington unit. Approximately 100 m north from inersection of Chamber Springs Rd and Kincheloe Rd.

West Gulf Coastal Plain. Pleistocene Fluvial Terraces Ecoregion. USGS Foreman 7.5' Quad. NE part of Foreman, 300 yds. E of SR-41, through a graveled parking area used for the local baseball diamond, 30 yds. SSW of the closest dugout to the highway.

Boston Mountains. Upper Boston Mountains Ecoregion. USGS Brentwood 7.5' Quad. In Brentwood, approx. 200 m SSW from intersection of US-71 and CR 154.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. W of Lake Coronado, W side of Lazo Pl, 60 yds S of the Reata Way intersection.

Ozark Highlands. Springfield Plateau Ecoregion. USGS Fayetteville 7.5' Quad. Fayetteville. Approximately 80 meters east of The Bike Route bicycle store on North Front st.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. S of Lake Coronado, N side of Ronquilla Way, 40 yds SW of the Ola Way intersection.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. SE of Coronado Lake, N of Balearic Rd, 20 yds W of the 8th hole's green on Coronado golf course.

West Gulf Coastal Plain. Pleistocene Fluvial Terraces Ecoregion. USGS Jersey 7.5' Quad. 3 miles SE of Jersey, 2.2 miles S of the SR-160 and CR-3 jct., then 150 yds. along a deer hunting clear-cut ESE of BR-65.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. W side of Calatoyuo Way, 0.1 miles NW of Pampalona Way intersection, and 0.5 miles SSE of Bermeo Way intersection.

Jefferson City. On grounds of Missouri Dept. of Conservation. TRS: T44N R12W S9

St. Francois Mtns. Section of Ozark Natural Divison. Ca. 3.5 mi SE of Knob Lick. S-F Boy Scout Ranch. SW-most arm of Nims Lake, Sakima Cove. Along S shore of cove, near S end of floating bridge and along shore to W. TRS: T34N R6E S23 W2NE4

Ozark Border Natural Division - Mississippi Section. Ca. 3.0 mi NW of Zalma. Castor River State Forest. Side-by-side sinkhole ponds. TRS: T29N R8E S14 NE4

West Gulf Coastal Plain. Pleistocene Fluvial Terraces Ecoregion. USGS Arkinda 7.5' Quad. 5 miles NW of Foreman, on the NE side of Climax Rd., 1.5 miles W of the Little River 101 jct.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. W side of San Juan Lane at start of cul-de-sac, 0.2 miles E of Ingles Way intersection.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. E side of Hechizo Way, 265 yds N of the Espectro Way intersection, and 55 yds NE of the Hechizo Ln intersection.

Ozark Highlands. USGS Guion 7.5' Quad. Lafferty Hollow; 4.5 miles southeast of Guion; about 3 miles long running north to south. TRS: T14N R8W S5 W2

Mississippi Alluvial Plain. Arkansas/Ouachita River Backswamps Ecoregion. USGS Ladd 7.5' Quad. NE Pine Bluff, 200 yds. S of Port Rd., 100 yds. W of S. Michigan St., and 85 yds. S of E 2nd Ave.

West Gulf Coastal Plain. Pleistocene Fluvial Terraces Ecoregion. USGS Artesian 7.5' Quad. 7 miles SE of Hampton, on the W side of CR-36, 0.8 miles S of the SR-160 jct.

Ouachita Mountains. Fourche Mountains Ecoregion. USGS Little Rock 7.5' Quad. Little Rock. Kanis Park. E side of park, N of Rock Creek, S of jct. of S Rodney Parham Rd. and I-630. TRS: T1N R13W S2 SE4SE4SE4

Ozark Highlands. Springfield Plateau Ecoregion. USGS Bentonville South 7.5' Quad. Cave Springs Cave Natural Area. About 0.4 mi. E on Midway Avenue from jct. with AR Hwy 112 in Cave Springs. S of Midway Avenue about 80 m along W edge of old field. TRS: T18

West Gulf Coastal Plain. Blackland Prairie Ecoregion. USGS Foreman 7.5' Quad. 2 miles SW of Foreman, 15 yds. NW of SR-108, 1.6 miles SW of the SR-32 jct.

West Gulf Coastal Plain. Floodplains and Low Terraces Ecoregion. USGS Tull 7.5' Quad. E of Haskell, 2.3 miles E of AR -229 jct., S side of road.

Ouachita Mountains. Central Hills, Ridges, and Valleys/Central Mountain Ranges Ecoregion boundary. USGS Crystal Springs 7.5' Quad. Ouachita National Forest. Peninsula of Lake Ouachita. Site accessed by boat.

West Gulf Coastal Plain. Tertiary Uplands Ecoregion. USGS Camden SW 7.5' Quad. 6 miles WSW of Camden, on the WSW side of CR-76, 90 yds. NNW of the US-278 jct.

West Gulf Coastal Plain. Blackland Prairie Ecoregion. USGS Foreman 7.5' Quad. 5 miles SW of Foreman, 20 yds. ESE of SR-108, 3.8 miles SW of the SR-32 jct.

Little Rock. Gillam Park.

West Gulf Coastal Plain. Tertiary Uplands Ecoregion. USGS Bloomburg 7.5' Quad. SW Miller County, on the E side of CR-155, 0.9 miles N of the SR-160 jct.

West Gulf Coastal Plain. Tertiary Uplands Ecoregion. USGS Doddridge 7.5' Quad. 5 miles SW of Doddridge, on the SE side of CR-167, 0.4 miles NE of the CR-31 jct.

Mississippi Alluvial Plain. St. Francis Lowlands Ecoregion. USGS Hatchie Coon 7.5' Quad. T13N R6E S35 S2SW4 St. Francis Sunken Lands Wildlife Management Area, Hatchie Coon Island. N side of southern portion of Handicap Access Trail (running roughly along

Howard

Mississippi Alluvial Plain. Arkansas/Ouachita River Holocene Meander Belts Ecoregion. USGS Humphrey SW 7.5' Quad. T5S R6W S14 SW4SW4 Bayou Meto Wildlife Management Area, W of Grand Cypress Lake & E of Grand Lake Ln. at a point about 2.1 rd. mi. S of jct.

Ouachita Mountains. Fourche Mountains Ecoregion. USGS Mountain Fork 7.5' Quad. T1N R32W S18 SE4SE4, S19, NE4NE4 & S20, NW4NW4 Ouachita National Forest. W end of Little Mountain just above (E of) Briery Creek, S and E of FS Rd. 894 (Scott Co. Rd. 138; Litt

Boston Mountains. Lower Boston Mountains Ecoregion. USGS Evansville 7.5' Quad. T13N R32W S28 near Center S2S2NE4 Garrett Hollow Natural Area. Garrett Hollow. About 1.1 mile due east of Antioch Road (Washington County Road 295) at a point about 0.6 mile no

Arkansas Valley. Scattered High Ridges and Mountains Ecoregion. USGS Caulksville 7.5' Quad. T8N R27W S36 SE4SE4 Horseshoe Mountain. Private Property. Top of southern-most bluff of mountain, accessed via private gravel road up mountain from Horseshoe Mount

Ouachita Mountains/West Gulf Coastal Plain boundary. Central Hills, Ridges, and Valleys/Tertiary Uplands Ecoregion boundary. USGS Haskell 7.5' Quad. 2 miles SW of Benton, in NW ditch of an abandoned truck weigh station along SE side of I-30 E.

T14S R12W S12 Near Lanark Branch beside a dirt road 3.1 miles south of Ark. 4 southwest of Banks.

West Gulf Coastal Plain. Blackland Prairie Ecoregion. USGS Prescott West 7.5' Quad. NW ditch along W-bound I-30, 38.5 miles SW of SR-51 jct.

Mississippi Alluvial Plain. Arkansas/Ouachita River Backswamps Ecoregion. USGS Winchester 7.5' Quad. S of Dumas, E side of US-65, 1.4 miles S of the SR-54 jct.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. SE of Balboa Lake, at the Balboa swimming beach.

T18S R12W S30 & S31 N. of U.S. 82 west of Strong, Ark. At Lapile Bayou.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. E of Balboa Lake, on the NE side of the Balboa Spillway hiking trail, 140 yds SW of Arista Ln, and 180 yds NW of Ponce de Leon Dr.

West Gulf Coastal Plain. Tertiary Uplands Ecoregion. USGS El Dorado West 7.5' Quad. El Dorado, 175 yds. WNW of the US-167 Bus. Jct.

T8S R7W S9 Briar Creek, 4 miles west of Briar Plant along Weyerhaeuser Road 22690.

Ouachita Mountains. Central Hills, Ridges, and Valleys Ecoregion. USGS Goosepond Mountain 7.5' Quad. Hot Springs Village. W of Balboa Lake, from the San Sebastian Dr and Balearic Rd intersection, 0.4 miles SW on Jardinero Dr, then 50 yds W along Viajero W

West Gulf Coastal Plain. Tertiary Uplands Ecoregion. USGS Traskwood 7.5' Quad. SW of Haskell, 0.3 miles NE of Oklahoma End Rd. jct., then walk 350 yds. SW along two-track services road to site.

UAM campus, ca 2 mi S of Monticello.