The phrase 'shallow slope' is correct and usable in written English.
You can use the phrase to describe a gradual incline, for example: "The hill had a shallow slope and proved easy for us to climb."
Twelve thousand small white crosses arranged in geometric lines rise like a gentle wave across the shallow slope.
He ran his palm down the ridge of her spine and onto the shallow slope of her buttocks.
But 13 inches of fairly shallow slope gives the front tire something to climb, making the car tilt.
The harbor has a shallow slope, with a large distance between the shores at low and high tide.
From there it is a shallow slope to the central craters, which are 85 km (53 miles) across.
As cars got smaller and the distance between the front bumper and the wheel grew shorter, the wheel contacted the shallow slope sooner, with more weight on it.
It was curious, however, that these data showed two distinct slopes; a steep induction of mutations from 100-35% survival, and a more shallow slope at lower survival.
While it is a shallow slope, Mr Probst said it was possible to reach speeds of 62mph at the site of the accident.
La Concha, the beach in the middle of San Sebastián, has fine golden sand, a shallow slope into the sea and is surrounded by the lush green hills of the Basque country.
The coastline has a shallow slope so the sapphire water, white sand and coral build-ups forming a calm sea which stretches for miles and is home to thousands of marine animals.
A parametric study is performed to investigate hydraulic effect of vegetation on shallow slope stability with different root architectures in an infinite slope.
