Room 1 of 9 · Prehistory

Our Land

The Land: Hippo Nation

Before there was a town, there was the land. Rolling Blackland Prairie, deep black soil, and creeks that shaped everything that followed.

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Narration is an AI-generated voice.

The Hutto ETJ

From the San Gabriel River (Jonah) on the north to the Williamson County Line on the south.

From CR 110 (boundary with Round Rock) on the west to CR 3349 (boundary with Taylor) on the east.

Total area of Hutto ETJ (extraterritorial jurisdiction): 32,869.36 acres.

Open, brushless undulating plain, interrupted by seams of woods only along river courses [and a] territory watered by rivers and creeks that assure the permanent fertility of this beautiful land. A highly favored land with its unsurpassed fertile soil and mild climate.
Scarbrough, Land of Good Water, 15

Hutto and its extraterritorial jurisdiction today. Map redrawn for the Hutto 150 exhibit.

The Balcones Escarpment and Edwards Aquifer

A long shelf of cliffs and sharp hills along an ancient fault line (the Balcones Escarpment) bisects Central Texas. It was formed millions of years ago when great seas covered the land.

Along the fault line is the Edwards Aquifer, which provides avenues for surface water to flow rapidly from west to east, including Hutto. Rainwater also pours into the fractured rock along the fault zone and feeds artesian wells and spring discharges.

The Soil

Known locally as “Black Gumbo,” it is a mixture of 1) calcium carbonate (chalky); 2) loose clay; and 3) marine clays and shells. It is rich in nutrients with a high capacity for holding water. Wet clay soil is sticky and contains very little air.

Blackland soil, known locally as Black Gumbo.

The San Gabriel River

Includes the North, Russell, Middle, and South forks, and is part of the Brazos River drainage basin. The river rises from four springs and flows from Burnet County eastward through Williamson County to its confluence with the Little River in Milam County, a total length of 120 miles. Major tributaries of the San Gabriel are Brushy, Alligator, Opossum, Berry, Pecan, Little, and Oatmeal creeks.

Brushy Creek

Rises from a spring three miles northwest of Leander in southwestern Williamson County and flows east for 65 miles until it reaches its mouth on the San Gabriel River.

It crosses the Chisholm Trail in Round Rock, flowing somewhat parallel to Hwy 79, as it enters Hutto on the south side of the railroad tracks. It intersects Chris Kelley Blvd and runs through Hutto’s southern neighborhoods on its way towards State Route 95. Along its shores was Shiloh, Hutto’s earliest Anglo settlement.

Cottonwood Creek

Rises from a spring south of Chandler Road at the intersection of SH 130. It runs along the north side of Hutto, through Old Town Hutto at Fritz Park, crosses US Hwy 79 at CR 1660 South, and eventually joins Brushy Creek near Norman’s Crossing.

McNutt Creek

Rising from two springs near College Prep High School in northern Round Rock, it runs through western Hutto for seven miles to its mouth on Brushy Creek. It was named for the McNutt family, one of Hutto’s first settlers.