sentences:  After dropping in elevation to near sea level near Indio, both the line and interstate climb about 1600-ft out of the Coachella Valley and into Shavers Valley.Upon entering Shavers Valley, the line crosses over I-10 near the Cactus City exit and continues to run parallel to Interstate 10 as both continue easterly across the Colorado Desert region of the Sonoran Desert.Both pass Chiriaco Summit and Desert Center with the line never more than 1.5 miles south of the freeway.