Round Valley Ensphere
James Fee, CC BY-SA 3.0
Rank in Arizona
#423of 727 ranked
Overall score
Score 36.4 out of 100medium confidence
Category
Landmark
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The Round Valley Ensphere, also known as the Tot Workman Dome, is a wooden-domed stadium at Eagar, Arizona, owned by Round Valley High School and the Round Valley Unified School District. It opened in 1991–92 at a cost of US$11 million and is the only domed high school football stadium in the United States. The venue seats 5,500 for football and 9,000 for basketball and volleyball, and the dome encloses a floor area of 189,000 square feet.

Where it is

Round Valley Ensphere is a landmark near St. Johns, in Apache County. It is one of the landmarks in this database, and appears in the statewide ranking of Arizona attractions.

How this ranking was reached

No official visitor count is published for Round Valley Ensphere, so its score rests on public interest and tourism significance, and is capped below the level a measured attraction can reach. That is why the medium confidence above is not higher. The weighting is explained in full on the methodology page, and every axis is broken out under Facts and sources at the foot of this page.

Note on the data: No official visitor count is published for this attraction.

Sources

Record last verified 2026-08-12.

Nearby attractions

Facts and sources

Place

Category
Landmark
Destination
St. Johns
State
Arizona

Visitation

Annual visits
Not published

Ranking

Overall score
36.4 / 100
Visitation score
No published count
Popularity score
26.0
Significance score
45.0
Confidence
medium

Visiting

Coordinates
34.1204, -109.2850
Last verified
2026-08-12