Tama County OHV Park — Layout & Terrain

Acreage

300 ac

Tracks

Season

Year-round (daily, weather permitting)

Rides like

Grippy loam — takes ruts, holds a line, and rewards smooth riding; sheds water at a normal pace. Prime window: Jul, Aug, Sep.

Track Details

Elevationyes - hills present

Accesspublic (Iowa DNR / county OHV park, maintained by Club S.P.O.R.T.)

Pee-wee trackYes

Woods loopYes

Track DNA — what the dirt is really like

Intermediate

Hard-packLoamSand

▸Loam — the good stuff. Takes ruts, holds a line, and rewards smooth riding. This is the surface most tires and stock suspension are happiest on.
▸Sheds water at a normal pace — usually good 2–3 days after rain.
▸High silt (40%) — this dirt turns to DUST when dry. Expect water trucks, hazy late motos, and pack extra air-filter prep.
▸Flat land — every jump and roller is built, which usually means a faster, more momentum-style track.
▸Wettest months: May, Jun, Oct — highest mud/cancellation risk. Prime window: Jul, Aug, Sep.

Sand

35%

Silt

40%

Clay

25%

Series: Anthroportic UdorthentsDrainage: Moderately well drainedRelief: flat · ~9 m

What do these terms mean? ▾

Sand / Silt / Clay %:: What the topsoil is made of. More sand = looser and faster-draining. More clay = harder, slicker when wet. Silt is the fine dust-maker in between.
Loam:: A balanced sand/silt/clay mix — the tacky, rut-forming dirt riders love.
Blue-groove:: When dry hard-pack gets polished by tires into a shiny dark racing line — grippy for some tires, ice for others.
Drainage class:: USDA’s rating of how fast this ground sheds water — it predicts how soon after rain the track is rideable.
Soil series:: The official USDA name for this exact soil type (like a breed name for dirt).
Relief:: How much the ground rises and falls within the track’s ~1 km square — flat, rolling, or genuinely hilly.

Tires that work on this dirt

Dunlop · Front & Rear

Geomax MX33

The most popular soft-to-intermediate tire — safe all-around pick.

Pirelli · Rear

Scorpion MX32 Mid-Soft

Versatile mid-soft compound for loamy, mixed dirt.

Maxxis · Rear

Maxxcross MX-ST

Value intermediate-terrain rear that wears well.

Picked for this track's intermediate surface.

Topsoil (0–15 cm) composition from USDA SSURGO soil survey. A guide to typical conditions — actual surface varies with prep, weather, and watering.

Riding Season

Apr – Oct

Best (warm + dry) Wettest (mud risk) Bar = monthly rain

Best months: Jul, Aug, SepDriest: Aug, SepMud risk: May, Jun, OctPeak heat: JulAnnual rain: 35.7"

Practical riding season Apr – Oct; best in Jul, Aug, Sep (warm + dry); wettest / mud risk May, Jun, Oct; peak heat Jul (~83°F).

Best months to ride in Iowa→

Based on 2019-2024climate normals (Open-Meteo / ERA5) at this location — a planning guide; check the track's Facebook for current conditions before you haul.