Road Information

Total Mileage in State: 391 miles
Eastern End: At New Mexico state line
Western End: At California state line
Mileage covered in Photos: 391 miles
Counties covered in Photos: La Paz, Maricopa, Pinal, Pima, Cochise
Major Junctions in Photos: US 95, in Quartzsite
I-17, in Phoenix
US 60, in Tempe
I-8, in Casa Grande
I-19, in Tucson
US 191, near Willcox
Control Cities in Photos: Quartzsite, Buckeye, Goodyear, Phoenix, Tempe, Chandler, Marana, Tucson, Benson, Willcox

Eastbound

   

Interstate 10 East as it crosses the Colorado River into the Grand Canyon State from California, at mile marker 0.  (Photo taken 5/19/15).

Interstate 10 East at Exit 1: Ehrenberg / Parker  (Photo taken 5/19/15).

Arizona welcome sign located just past Exit 1 on Interstate 10 East.  (Photo taken 5/19/15).

With the Weigh Station / Port of Entry coming up in a mile or so, commercial vehicles are informed by this sign to use the right lane.  (Photo taken 5/19/15).

Interstate 10 East / US 95 South dual shields located near mile marker 1.  (Photo taken 5/19/15).

The speed limit starts out at 65 mph on Interstate 10 East in Arizona, and stays that way for a few miles until we pass the Weigh Station ahead.  (Photo taken 5/19/15).

As this sign reads, Interstate 10 in Arizona is also known as the Pearl Harbor Memorial Highway.  (Photo taken 5/19/15).

One mile from the Weigh Station, these signs indicate that lane changing is prohibited for the next mile up to the Weigh Station. Solid double white lines appear to make this clear. I'm not sure why Arizona prohibits lane changing by ALL vehicles approaching their scales, but so be it.  (Photo taken 5/19/15).

Interstate 10 East at the Weigh Station / Port of Entry located near mile marker 3.5  (Photo taken 5/19/15).

After the ramp to the Weigh Station, the lane restrictions end.  (Photo taken 5/19/15).

Once past the Weigh Station / Port of Entry, the speed limit increases to 75 mph, which is standard on most rural Interstates in Arizona.  (Photo taken 5/19/15).

Interstate 10 East at the Rest Area located near mile marker 4.  (Photo taken 5/19/15).

Interstate 10 East at Exit 5: Tom Wells Rd  (Photo taken 5/19/15).

Interstate 10 East / US 95 South assurance shields near mile marker 5.  (Photo taken 5/19/15).

Another speed limit sign on Interstate 10 East, near mile marker 5. Once again, the standard speed limit on most rural Interstates in Arizona is 75 mph.  (Photo taken 5/19/15).

Mileage sign near mile marker 5. It's 12 miles to Quartzsite, 46 miles to the next Rest Area, and 140 miles to Phoenix.  (Photo taken 5/19/15).

View on Interstate 10 East.  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 9.  (Photo taken 5/19/15).

Interstate 10 East as it leaves the Colorado River Indian Reservation.  (Photo taken 5/19/15).

Interstate 10 East at Exit 11: Dome Rock Rd  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 15.  (Photo taken 5/19/15).

Take either of the next 2 exits to Quartzsite.  (Photo taken 5/19/15).

Take Exit 17 to Interstate 10 BL to Quartzsite.  (Photo taken 5/19/15).

Interstate 10 East approaching Exit 17 - 1 mile.  (Photo taken 5/19/15).

Interstate 10 East at Exit 17: US 95 / AZ 95 - Parker / Yuma  (Photo taken 5/19/15).

Interstate 10 East at Exit 19: Quartzsite  (Photo taken 5/19/15).

Now that US 95 has departed to the south, we see this standalone Interstate 10 East assurance shield near mile marker 19.  (Photo taken 5/19/15).

Interstate 10 East at mile marker 24.  (Photo taken 5/19/15).

Interstate 10 East at Exit 26: Gold Nugget Rd  (Photo taken 5/19/15).

View on Interstate 10 East. This is the first point at which we get a good look at some cacti.  (Photo taken 5/19/15).

Interstate 10 East at Exit 31: US 60 East - Wickenburg / Prescott  (Photo taken 5/19/15).

Interstate 10 East at mile marker 36.  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 39.  (Photo taken 5/19/15).

Interstate 10 East at mile marker 41.  (Photo taken 5/19/15).

Interstate 10 East at Exit 45: Vicksburg Rd  (Photo taken 5/19/15).

Mileage sign near mile marker 45. It's 6 miles to the next Rest Area, 66 miles to the junction of AZ 85, and 100 miles to Phoenix.  (Photo taken 5/19/15).

At mile marker 47, these signs warn motorists that blowing dust may exist.  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 48.  (Photo taken 5/19/15).

Interstate 10 East at mile marker 50.  (Photo taken 5/19/15).

Interstate 10 East at the Rest Area located at mile marker 52.  (Photo taken 5/19/15).

Interstate 10 East at Exit 53: Hovatter Rd  (Photo taken 5/19/15).

Mileage sign near mile marker 53. It's 33 miles to the next Rest Area, 58 miles to the junction of AZ 85, and 92 miles to Phoenix.  (Photo taken 5/19/15).

At mile marker 56, Interstate 10 East enters another Blowing Dust Area.  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 58.  (Photo taken 5/19/15).

Another mileage sign on Interstate 10 East. It's 25 miles to the next Rest Area, 32 miles to Tonopah, and 84 miles to Phoenix.  (Photo taken 5/19/15).

Interstate 10 East at mile marker 67.  (Photo taken 5/19/15).

Interstate 10 East at Exit 69: Ave 75E  (Photo taken 5/19/15).

Interstate 10 East entering Maricopa County.  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 77.  (Photo taken 5/19/15).

Take Exit 81 to Harquahala Valley Rd.  (Photo taken 5/19/15).

Interstate 10 East at Exit 81: Salome Rd  (Photo taken 5/19/15).

Interstate 10 East at mile marker 84.  (Photo taken 5/19/15).

Interstate 10 East at the Rest Area located near mile marker 86.  (Photo taken 5/19/15).

Interstate 10 East at mile marker 88.  (Photo taken 5/19/15).

Take Exit 94 to 411th Ave.  (Photo taken 5/19/15).

Interstate 10 East at Exit 94: Tonopah  (Photo taken 5/19/15).

Take Exit 98 to Palo Verde Nuclear Generating Station.  (Photo taken 5/19/15).

Interstate 10 East at Exit 95: Wintersburg Rd  (Photo taken 5/19/15).

Mileage sign near mile marker 95. It's 13 miles to the junction of AZ 85, 17 miles to Buckeye, and 47 miles to Phoenix.  (Photo taken 5/19/15).

Interstate 10 East at Exit 103: 339th Ave  (Photo taken 5/19/15).

Interstate 10 East entering the Buckeye city limits.  (Photo taken 5/19/15).

Interstate 10 East: Road view from mile marker 106.  (Photo taken 5/19/15).

Take any of the next 6 exits to Buckeye.  (Photo taken 5/19/15).

Take Exit 109 to Buckeye Municipal Airport.  (Photo taken 5/19/15).

Interstate 10 East at Exit 109: Sun Valley Pkwy / Palo Verde Road  (Photo taken 5/19/15).

This sign advises motorists of the best route to bypass downtown Phoenix and get back to Interstate 10 East. The recommendation by the sign is to take the next exit (Exit 112) for AZ 85 and take it south to Interstate 8 East.  (Photo taken 5/19/15).

Interstate 10 East approaching Exit 112 - 1 mile.  (Photo taken 5/19/15).

Interstate 10 East at Exit 112: AZ 85 / To Interstate 8 - Gila Bend  (Photo taken 5/19/15).

Interstate 10 East at Exit 114: Miller Rd  (Photo taken 5/19/15).

Mileage sign near mile marker 114. It's 13 miles to Goodyear, 14 miles to Avondale, and 31 miles to Phoenix.  (Photo taken 5/19/15).

Interstate 10 East at Exit 117: Watson Rd  (Photo taken 5/19/15).

Interstate 10 East at Exit 120: Verrado Way  (Photo taken 5/19/15).

Just past Exit 120, the speed limit decreases to 65 mph as we near the Phoenix area. It remains 65 mph until we're east of downtown Phoenix.  (Photo taken 5/19/15).

Interstate 10 East at Exit 121: Jackrabbit Trail  (Photo taken 5/19/15).

Take any of the next 7 exits to Goodyear.  (Photo taken 5/19/15).

Interstate 10 East at Exit 122: Perryville Rd  (Photo taken 5/19/15).

Take Exit 123 to the State Prison.  (Photo taken 5/19/15).

Interstate 10 East approaching Exit 124 - 1 mile.  (Photo taken 5/19/15).

Interstate 10 East at Exit 123: Citrus Rd / Cotton Lane  (Photo taken 5/19/15).

Interstate 10 East at Exit 124: AZ Loop 303 North  (Photo taken 5/19/15).

Interstate 10 East as the HOV lane appears to the left, at Exit 124.  (Photo taken 5/19/15).

Sign listing the distances to the upcoming exits off Interstate 10 East.  (Photo taken 5/19/15).

Interstate 10 East as it prepares to pass under the ramps to and from AZ Loop 303.  (Photo taken 5/19/15).

Interstate 10 East at Exit 126: PebbleCreek Pkwy / Estrella Pkwy  (Photo taken 5/19/15).

Interstate 10 East at Exit 127: Bullard Ave  (Photo taken 5/19/15).

Take Exit 128 to Luke Air Force Base, Litchfield Park, and Phoenix-Goodyear Airport.  (Photo taken 5/19/15).

Take any of the next 4 exits to Avondale.  (Photo taken 5/19/15).

Interstate 10 East at Exit 128: Litchfield Rd  (Photo taken 5/19/15).

Take Exit 129 to Estrella Mtn Community College.  (Photo taken 5/19/15).

Interstate 10 East at Exit 129: Dysart Rd  (Photo taken 5/19/15).

Interstate 10 East assurance shield near mile marker 129.  (Photo taken 5/19/15).

Take Exit 131 to Phoenix International Raceway.  (Photo taken 5/19/15).

Interstate 10 East at Exit 131: Avondale Blvd  (Photo taken 5/19/15).

Interstate 10 East at Exit 132: 107th Ave  (Photo taken 5/19/15).

Take any of the next 3 exits to Tolleson.  (Photo taken 5/19/15).

Interstate 10 East at Exit 133A: 99th Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 133B: AZ Loop 101 North  (Photo taken 5/19/15).

Take Exit 134 to Downtown Tolleson and Paseo de Luces.  (Photo taken 5/19/15).

Interstate 10 East at Exit 134: 91st Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 135: 83rd Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 136: 75th Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 137: 67th Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 138: 59th Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 139: 51st Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 140: 43rd Ave  (Photo taken 5/19/15).

All trucks hauling hazardous materials must use Exit 143B and take Interstate 17 South around the south side of downtown, back to Interstate 10 East.  (Photo taken 5/19/15).

Interstate 10 East at Exit 141: 35th Ave  (Photo taken 5/19/15).

Take Exit 143B (Interstate 17 South) to the State Capitol.  (Photo taken 5/19/15).

Interstate 10 East approaching Exit 143A - 3/4 mile.  (Photo taken 5/19/15).

Interstate 10 East at Exit 142: 27th Ave  (Photo taken 5/19/15).

Interstate 10 East at Exit 143A: Interstate 17 North - Flagstaff; Exit 143B: Interstate 17 South / US 60 East - I-10 Truck Route  (Photo taken 5/19/15).

All hazardous materials haulers must use Exit 144A ahead. The reason for this is that they don't want hazardous materials going through the Deck Park Tunnel on Interstate 10.  (Photo taken 5/20/15).

Interstate 10 East at Exit 144A: 7th Ave  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 145 - 3/4 mile. The ramp for Exit 145 is immediately upon exiting the Deck Park Tunnel ahead.  (Photo taken 5/20/15).

Interstate 10 East as it prepares to enter the Deck Park Tunnel.  (Photo taken 5/20/15).

Interstate 10 East at Exit 145: 7th St  (Photo taken 5/20/15).

Interstate 10 East assurance shield just past Exit 145.  (Photo taken 5/20/15).

Traffic headed to Sky Harbor International Airport should use Interstate 10 East to Exit 149.  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 147A - 3/4 mile.  (Photo taken 5/20/15).

Interstate 10 East at Exit 146: 16th St  (Photo taken 5/20/15).

Interstate 10 East at Exit 147A: AZ Loop 202 East  (Photo taken 5/20/15).

Interstate 10 East as it curves to the south around the northeastern edge of the downtown Phoenix area.  (Photo taken 5/20/15).

Take Exit 148 to Downtown and the Cultural/Sports Facilities.  (Photo taken 5/20/15).

Interstate 10 East at Exit 148: Washington St / Jefferson St / Rental Car Return  (Photo taken 5/20/15).

Interstate 10 East at Exit 149: Sky Harbor International Airport  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 150 - 1/2 mile.  (Photo taken 5/20/15).

Interstate 10 East at Exit 150: Interstate 17 North - Flagstaff  (Photo taken 5/20/15).

Sign listing the distances to the next 3 upcoming exits.  (Photo taken 5/20/15).

Interstate 10 East at Exit 151: University Dr / 32nd St  (Photo taken 5/20/15).

Dual Interstate 10 East / US 60 East assurance shields just past Exit 151.  (Photo taken 5/20/15).

Interstate 10 East at Exit 152: 40th St  (Photo taken 5/20/15).

Interstate 10 East at Exit 153: AZ 143 - 48th St / Broadway Rd  (Photo taken 5/20/15).

Interstate 10 East entering the Tempe city limits.  (Photo taken 5/20/15).

Interstate 10 East / US 60 East assurance shields.  (Photo taken 5/20/15).

Interstate 10 East at Exit 154: US 60 East - Mesa / Globe  (Photo taken 5/20/15).

Take Exit 155 to South Mountain Community College, Arizona Mills, and Tourist Info.  (Photo taken 5/20/15).

Interstate 10 East at Exit 155: Baseline Rd / Guadalupe  (Photo taken 5/20/15).

Past Exit 155, the speed limit remains 65 mph for a bit longer.  (Photo taken 5/20/15).

Interstate 10 East at Exit 157: Elliot Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 158: Warner Rd  (Photo taken 5/20/15).

Take either of the next 2 exits to Chandler.  (Photo taken 5/20/15).

Interstate 10 East at Exit 159: Ray Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 160: Chandler Blvd  (Photo taken 5/20/15).

Interstate 10 East at Exit 161: AZ Loop 202 East / Pecos Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 162: Wild Horse Pass Blvd / Sundust Rd  (Photo taken 5/20/15).

Take Exit 164 to Huhugam Heritage Center.  (Photo taken 5/20/15).

Also take Exit 164 to AZ 347 South toward Maricopa and the Ak-Chin Indian Community.  (Photo taken 5/20/15).

Interstate 10 East at Exit 164: AZ 347 South - Queen Creek Rd  (Photo taken 5/20/15).

Interstate 10 East assurance shield at mile marker 165.  (Photo taken 5/20/15).

Near mile marker 166, the standard speed limit of 75 mph resumes.  (Photo taken 5/20/15).

Interstate 10 East at Exit 167: Riggs Rd  (Photo taken 5/20/15).

Mileage sign near mile marker 168. It's 24 miles to Casa Grande, 31 miles to the junction of Interstate 8 West, and 92 miles to Tucson.  (Photo taken 5/20/15).

Take Exit 175 to Sacaton.  (Photo taken 5/20/15).

Interstate 10 East at Exit 175: AZ 587 North - Casa Blanca Rd  (Photo taken 5/20/15).

Speed limit sign near mile marker 176. Speed limit - 75 mph.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 178.  (Photo taken 5/20/15).

Interstate 10 East at the Rest Area located near mile marker 181.  (Photo taken 5/20/15).

Take any of the next 4 exits to Casa Grande.  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 185 - 1 1/2 miles.  (Photo taken 5/20/15).

Take Exit 185 to Casa Grande Ruins National Monument and Casa Grande Airport.  (Photo taken 5/20/15).

Interstate 10 East at Exit 185: AZ 187 / AZ 387 - Coolidge / Florence  (Photo taken 5/20/15).

Interstate 10 East as it leaves the Gila River Indian Reservation.  (Photo taken 5/20/15).

Another Interstate 10 East assurance shield.  (Photo taken 5/20/15).

Interstate 10 East as it enters the Casa Grande city limits.  (Photo taken 5/20/15).

Take Exit 190 to Central Arizona College.  (Photo taken 5/20/15).

Interstate 10 East at Exit 190: McCartney Rd  (Photo taken 5/20/15).

Take Exit 194 to the Pinal County Fairgrounds.  (Photo taken 5/20/15).

Interstate 10 East at Exit 194: AZ 287 - Florence Blvd  (Photo taken 5/20/15).

Overhead mileage sign near mile marker 195. It's 2 miles to the next exit (Jimmie Kerr Blvd), 3 miles to the junction of Interstate 8 West, and 65 miles to Tucson.  (Photo taken 5/20/15).

Interstate 10 East at Exit 198: Jimmie Kerr Blvd  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 199 - 1/2 mile.  (Photo taken 5/20/15).

Interstate 10 East at Exit 199: Interstate 8 West - San Diego  (Photo taken 5/20/15).

Take any of the next 3 exits to Eloy.  (Photo taken 5/20/15).

Interstate 10 East at Exit 200: Sunland Gin Rd / Arizona City  (Photo taken 5/20/15).

Interstate 10 East at mile marker 201.  (Photo taken 5/20/15).

Interstate 10 East at Exit 203: Toltec Rd  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 207.  (Photo taken 5/20/15).

Interstate 10 East at Exit 208: Sunshine Blvd  (Photo taken 5/20/15).

Interstate 10 East at Exit 211A: Picacho  (Photo taken 5/20/15).

Interstate 10 East at Exit 211B: AZ 87 North - Coolidge  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 213.  (Photo taken 5/20/15).

Mileage sign on Interstate 10 East. It's 13 miles to Red Rock and 47 miles to Tucson.  (Photo taken 5/20/15).

Interstate 10 East at mile marker 214.  (Photo taken 5/20/15).

Take Exit 219 to Picacho Peak State Park.  (Photo taken 5/20/15).

Interstate 10 East at Exit 219: Picacho Peak Rd  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 225.  (Photo taken 5/20/15).

Interstate 10 East at Exit 226: Red Rock  (Photo taken 5/20/15).

Interstate 10 East at mile marker 229.  (Photo taken 5/20/15).

Take Exit 232 to the Army National Guard Aviation Training Site.  (Photo taken 5/20/15).

Interstate 10 East at Exit 232: Pinal Air Park Rd  (Photo taken 5/20/15).

Take any of the next 7 exits to Marana.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 234.  (Photo taken 5/20/15).

Interstate 10 East at Exit 236: Marana Rd  (Photo taken 5/20/15).

Interstate 10 East at mile marker 238.  (Photo taken 5/20/15).

Sign listing the distances to the three upcoming exits to Marana.  (Photo taken 5/20/15).

Take Exit 240 to Oro Valley.  (Photo taken 5/20/15).

Interstate 10 East at Exit 240: Tangerine Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 242: Avra Valley Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 244: Twin Peaks Rd  (Photo taken 5/20/15).

At mile marker 246, the speed limit decreases to 65 mph and remains that way until we're east of the Tucson area.  (Photo taken 5/20/15).

Interstate 10 East at Exit 246: Cortaro Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 248: Ina Rd  (Photo taken 5/20/15).

Take Exit 250 to Pima Community College.  (Photo taken 5/20/15).

Interstate 10 East at Exit 250: Orange Grove Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 251: Sunset Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 252: El Camino Del Cerro / Ruthrauff Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 254: Prince Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 255: AZ 77 North - Miracle Mile  (Photo taken 5/20/15).

Interstate 10 East at Exit 256: Grant Rd  (Photo taken 5/20/15).

Take Exit 257 to the University of Arizona and Pima Community College.  (Photo taken 5/20/15).

Also take Exit 257 to the Desert Museum and Old Tucson.  (Photo taken 5/20/15).

Interstate 10 East at Exit 257: Speedway Blvd / St Marys Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 258: Congress St / Broadway Blvd  (Photo taken 5/20/15).

Take Exit 259 to the City of South Tucson.  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 260 - 1 mile.  (Photo taken 5/20/15).

Interstate 10 East at Exit 259: 22nd St / 29th St / Starr Pass Blvd / Silverlake Rd  (Photo taken 5/20/15).

Stay on Interstate 10 East to Tucson International Airport.  (Photo taken 5/20/15).

Use Interstate 19 South via Exit 260 to the Desert Museum and Old Tucson.  (Photo taken 5/20/15).

Interstate 10 East at Exit 260: Interstate 19 South - Nogales  (Photo taken 5/20/15).

Interstate 10 East at Exit 261: 6th Ave / 4th Ave  (Photo taken 5/20/15).

Take Exit 262 to Kino Sports Complex.  (Photo taken 5/20/15).

Interstate 10 East at Exit 262: Benson Hwy / Park Ave  (Photo taken 5/20/15).

Interstate 10 East at Exit 263A: Kino Pkwy South / Tucson International Airport  (Photo taken 5/20/15).

Interstate 10 East at Exit 263B: Kino Pkwy North / Ajo Way  (Photo taken 5/20/15).

Speed limit sign near mile marker 264. The speed limit remains 65 mph for a bit longer.  (Photo taken 5/20/15).

Take Exit 265 to Davis Monthan Air Force Base.  (Photo taken 5/20/15).

Interstate 10 East at Exit 264A: Palo Verde Rd South  (Photo taken 5/20/15).

Interstate 10 East at Exit 264B: Palo Verde Rd North / Irvington Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 265: Alvernon Way  (Photo taken 5/20/15).

Take Exit 267 to the Pima Air and Space Museum.  (Photo taken 5/20/15).

Interstate 10 East at Exit 267: Valencia Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 268: Craycroft Rd  (Photo taken 5/20/15).

Take Exit 269 to the Federal and State Prisons.  (Photo taken 5/20/15).

Interstate 10 East assurance shield.  (Photo taken 5/20/15).

Interstate 10 East at Exit 269: Wilmot Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 270: Kolb Rd  (Photo taken 5/20/15).

Just past Exit 270, the standard speed limit of 75 mph resumes.  (Photo taken 5/20/15).

Take either of the next 2 exits to the Pima County Fairgrounds.  (Photo taken 5/20/15).

There is an 18 ton weight limit on North Houghton Rd. Trucks over 18 tons gross should use Exit 273 (Rita Rd) instead.  (Photo taken 5/20/15).

Interstate 10 East at Exit 273: Rita Rd  (Photo taken 5/20/15).

Take Exit 275 to Saguaro National Park.  (Photo taken 5/20/15).

Interstate 10 East at Exit 275: Houghton Rd  (Photo taken 5/20/15).

Mileage sign near mile marker 276. It's 5 miles to the junction of AZ 83 South, 29 miles to Benson, and 300 miles to El Paso.  (Photo taken 5/20/15).

Take Exit 279 to Vail and Colossal Cave Mountain Park.  (Photo taken 5/20/15).

Interstate 10 East at Exit 279: Colossal Cave Rd / Wentworth Rd  (Photo taken 5/20/15).

Take Exit 281 to AZ 83 Scenic Route.  (Photo taken 5/20/15).

Interstate 10 East at Exit 281: AZ 83 South - Sonoita / Patagonia  (Photo taken 5/20/15).

Speed limit sign near mile marker 281. Speed limit - 75 mph.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 284.  (Photo taken 5/20/15).

View on Interstate 10 East.  (Photo taken 5/20/15).

Interstate 10 East at mile marker 289.  (Photo taken 5/20/15).

Interstate 10 East at Exit 291: Marsh Station Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 292: Empirita Rd  (Photo taken 5/20/15).

Interstate 10 East entering Cochise County.  (Photo taken 5/20/15).

Interstate 10 East at Exit 297: Mescal Rd / J Six Ranch Rd  (Photo taken 5/20/15).

Interstate 10 East at Exit 299: Skyline Rd  (Photo taken 5/20/15).

Past Exit 299, Interstate 10 East prepares to traverse a 5% downgrade one mile ahead.  (Photo taken 5/20/15).

Take Exit 302 to Kartchner Caverns State Park and Fort Huachuca National Historic Site.  (Photo taken 5/20/15).

Take any of the next 4 exits to Benson.  (Photo taken 5/20/15).

Interstate 10 East as it starts down a 5% grade which lasts for the next 4 miles. Gear down.  (Photo taken 5/20/15).

Interstate 10 East at Exit 302: AZ 90 East - Ft Huachuca / Sierra Vista  (Photo taken 5/20/15).

Take Exit 303 to AZ 80 East toward Bisbee and Tombstone Courthouse State Historic Park.  (Photo taken 5/20/15).

Interstate 10 East at Exit 303: Interstate 10 BL / To AZ 80 East - Tombstone / Douglas  (Photo taken 5/20/15).

Take Exit 304 to Benson Airport.  (Photo taken 5/20/15).

Interstate 10 East at Exit 304: Ocotillo Ave  (Photo taken 5/20/15).

Interstate 10 East at Exit 306: Pomerene Rd  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 308.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 310. According to the sign ahead, brushfire danger was apparently extreme at the time.  (Photo taken 5/20/15).

Interstate 10 East at Exit 312: Sibyl Rd  (Photo taken 5/20/15).

Interstate 10 East assurance shield near mile marker 312.  (Photo taken 5/20/15).

Interstate 10 East at mile marker 315.  (Photo taken 5/20/15).

At mile marker 316, this sign indicates that Interstate 10 enters Texas Canyon. We're about to do some climbing heading east out of the canyon.  (Photo taken 5/20/15).

View on Interstate 10 East as we start the climb.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 318. There are some very neat granite rock formations as we climb up out of Texas Canyon.  (Photo taken 5/20/15).

Interstate 10 East approaching Exit 318 - 1/2 mile.  (Photo taken 5/20/15).

Interstate 10 East at Exit 318: Dragoon Rd  (Photo taken 5/20/15).

Interstate 10 East assurance shield as we continue climbing up out of Texas Canyon and admiring the neat granite rock formations.  (Photo taken 5/20/15).

Near mile marker 319, this sign warns that defacing the granite rocks is unlawful. Why would you ever want to deface such natural beauty in the first place?  (Photo taken 5/20/15).

Interstate 10 East at the Rest Area located near mile marker 320.  (Photo taken 5/20/15).

Interstate 10 East at Exit 322: Johnson Rd  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 327.  (Photo taken 5/20/15).

Interstate 10 East at mile marker 329.  (Photo taken 5/20/15).

Take Exit 331 to Cochise Stronghold.  (Photo taken 5/20/15).

Interstate 10 East at Exit 331: US 191 South - Sunsites / Douglas  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 333.  (Photo taken 5/20/15).

Take any of the next 3 exits to Willcox.  (Photo taken 5/20/15).

Take Exit 336 to Taylor Rd.  (Photo taken 5/20/15).

Interstate 10 East at Exit 336: Interstate 10 BL / To AZ 186 East - Chiricahua National Monument  (Photo taken 5/20/15).

Mileage sign at mile marker 338. It's 2 miles to the next exit (junction of AZ 186), 14 miles to the junction of US 191 North, and 238 miles to El Paso.  (Photo taken 5/20/15).

Interstate 10 East entering the Willcox city limits.  (Photo taken 5/20/15).

Interstate 10 East at Exit 340: AZ 186 East - Rex Allen Dr / Fort Grant Rd  (Photo taken 5/20/15).

Interstate 10 East at mile marker 342.  (Photo taken 5/20/15).

Interstate 10 East at Exit 344: Interstate 10 BL - To Old Stewart Rd  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 349.  (Photo taken 5/20/15).

Interstate 10 East at Exit 352: US 191 North - Safford  (Photo taken 5/20/15).

Interstate 10 East at mile marker 355, as it enters a blowing dust warning area which lasts for the next 30 miles.  (Photo taken 5/20/15).

Interstate 10 East at Exit 355: Safford  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 357.  (Photo taken 5/20/15).

Mileage sign on Interstate 10 East. It's 6 miles to Bowie, 56 miles to Lordsburg, and 217 miles to El Paso.  (Photo taken 5/20/15).

Dust storm warning sign at mile marker 361. In the case of limited visibility due to blowing dust, you're advised to pull off the road and turn off your lights.  (Photo taken 5/20/15).

Take Exit 362 to Fort Bowie National Historic Site.  (Photo taken 5/20/15).

Interstate 10 East at Exit 362: Interstate 10 BL - Bowie  (Photo taken 5/20/15).

At mile marker 364, these warning signs state that the blowing dust area lasts for 20 more miles.  (Photo taken 5/20/15).

Interstate 10 East at Exit 366: Interstate 10 BL - Bowie  (Photo taken 5/20/15).

Interstate 10 East at mile marker 373.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 376.  (Photo taken 5/20/15).

Interstate 10 East at Exit 378: Interstate 10 BL - San Simon  (Photo taken 5/20/15).

Take Exit 382 to Portal.  (Photo taken 5/20/15).

Interstate 10 East at Exit 382: Interstate 10 BL - San Simon  (Photo taken 5/20/15).

Interstate 10 East at the Weigh Station located at mile marker 383.  (Photo taken 5/20/15).

Interstate 10 East: Road view from mile marker 386.  (Photo taken 5/20/15).

Interstate 10 East at the Rest Area located near mile marker 388.  (Photo taken 5/20/15).

Interstate 10 East at Exit 390: Cavot Rd. This is the final exit in Arizona, as I-10 East prepares to enter New Mexico.  (Photo taken 5/20/15).